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Tag: Dementia

  • Effective Strategies for Cognitive Decline Prevention and Lower Dementia Risk

    Effective Strategies for Cognitive Decline Prevention and Lower Dementia Risk

    As people grow older, physical changes are expected, but the brain also undergoes transformations that deserve attention. Maintaining cognitive health is essential to staying independent and mentally sharp through the years. Experts emphasize that many aspects of cognitive decline prevention depend on daily lifestyle choices rather than uncontrollable factors.

    A growing body of research shows that nurturing the brain early in life supports long-term mental resilience and may significantly lower dementia risk.

    What Happens to the Brain as We Age

    Aging naturally influences the brain’s structure and function. Neural communication slows down, blood flow may decrease, and the hippocampus, responsible for memory and learning, can become smaller. Many people experience occasional forgetfulness, such as misplacing keys or struggling to recall names. These are normal patterns related to brain health aging, not always signs of disease.

    However, persistent memory loss, confusion, or changes in reasoning ability can suggest early neurological disorders. Genetics play a role, but scientists point out that environmental factors, like stress, diet, and toxin exposure, affect how rapidly the brain ages. Understanding this balance helps individuals distinguish between normal aging and symptoms that require professional evaluation.

    What Causes Cognitive Decline

    There is no single cause behind cognitive deterioration. Instead, experts identify a combination of biological and lifestyle factors that accelerate the process. Poor nutrition, chronic stress, sedentary habits, and lack of sleep can gradually weaken brain function. Conditions like diabetes, hypertension, and cardiovascular disease further increase dementia risk because they restrict blood flow and oxygen to the brain.

    Inflammation and oxidative stress also play a critical role. When the body constantly fights off free radicals, unstable molecules caused by stress, pollution, or poor diet, it strains the brain’s ability to repair and regenerate cells. Over time, these factors can lead to subtle memory decline or, in more severe cases, neurodegenerative diseases.

    How to Prevent Cognitive Decline

    Promoting daily habits that protect and enhance brain performance is the cornerstone of cognitive decline prevention. Research suggests that lifestyle medicine, simple, consistent changes in behavior, can have a remarkable impact on mental vitality.

    Stay Physically Active

    Exercise improves blood flow, encourages new neuron growth, and reduces stress. Aerobic workouts such as walking, swimming, or dancing help strengthen connections between brain cells, supporting better memory and learning ability.

    Eat Nourishing Foods

    A diet rich in fruits, vegetables, whole grains, and lean proteins supports overall brain health aging, according to the World Health Organization. Omega-3 fatty acids, found in fish and flaxseed, protect brain cells from damage. The Mediterranean diet, full of antioxidants and healthy fats, is strongly associated with lower dementia risk.

    Challenge the Mind

    Mental stimulation keeps neural pathways active. Learning a new language, taking up an instrument, or engaging in puzzles can all enhance cognitive flexibility. Activities that push the brain out of comfort zones are particularly beneficial.

    Prioritize Quality Sleep

    During deep sleep, the brain clears toxins and consolidates memories. Adults should aim for seven to nine hours per night. Persistent sleep deprivation weakens attention and decision-making skills.

    Manage Stress Levels

    Chronic stress heightens cortisol levels, which can harm the hippocampus over time. Mindfulness, yoga, and breathing exercises encourage relaxation and improve emotional regulation.

    Strengthen Social Connections

    Meaningful relationships and frequent communication protect mental wellness. Social engagement stimulates cognitive processes, reduces loneliness, and may delay cognitive decline.

    Can Cognitive Decline Be Reversed

    Reversal depends on the stage. In mild cognitive impairment (MCI), some symptoms may be improved or stabilized. Cognitive training programs, brain games, and consistent lifestyle improvements have been shown to strengthen neural activity. Clinical studies demonstrate that diet and exercise, combined with social and mental engagement, can sometimes restore modest cognitive function.

    However, once brain cells are severely damaged, as seen in advanced dementia, reversal becomes less likely. In these cases, early detection and intervention remain the most important strategies. Regular checkups can help track progress, identify risk factors, and start appropriate management before symptoms intensify.

    How Lifestyle Factors Influence Dementia Risk

    Lifestyle is widely recognized as a powerful modifier of mental health outcomes. The same habits that reduce heart disease and diabetes risk also protect the brain. Consistent physical activity increases oxygen supply and stimulates neurotrophic factors, natural proteins that help brain cells grow and connect, as per the Centers for Disease Control and Prevention. Eating nutrient-dense foods regulates blood sugar and curbs inflammation, while strong social networks provide emotional stability and cognitive stimulation.

    Long-term studies show that adults who maintain balanced lifestyles reduce their likelihood of developing dementia by up to 40 percent. Simple decisions, like replacing processed snacks with whole foods or joining a local hobby group, create measurable effects in brain health aging.

    Supplements and Medications: Do They Help

    Interest in supplements for cognitive decline prevention continues to rise, but evidence varies. Omega-3s, vitamin D, and B vitamins appear beneficial, especially in those with existing deficiencies.

    Vitamin B12 supports memory and nerve signal transmission, while vitamin D contributes to brain cell health. Turmeric and resveratrol, both plant-based antioxidants, are being studied for their protective properties.

    Still, experts caution against overreliance on supplements. Not all claims have scientific support, and quality differs among brands. A balanced diet remains the best foundation for nutrient intake. Before taking any supplement, consulting a healthcare professional ensures compatibility with medications and personal needs.

    Warning Signs: When to Seek a Doctor’s Help

    Occasional forgetfulness is common, but there are situations that require prompt attention. Difficulty recognizing familiar faces, getting lost in daily routines, or losing track of time may indicate more serious conditions. Sudden changes in language ability, judgment, or emotional regulation can also signal early dementia or other neurological disorders.

    Medical professionals use cognitive screenings, brain imaging, and lab tests to evaluate these symptoms. Identifying underlying causes, such as vitamin deficiency, thyroid imbalance, or medication side effects, can sometimes reverse mild cognitive problems. Seeking early assessment improves treatment options and helps protect independence longer.

    Long-Term Habits for Lifelong Brain Vitality

    Sustaining brain wellness doesn’t depend on dramatic changes. Small, consistent habits nurtured over time have lasting effects. Incorporating daily walks, reading, balanced nutrition, and mindful relaxation exercises builds resilience against mental decline. Aligning these choices with regular medical care creates a comprehensive defense system for brain health aging.

    Community participation also plays a meaningful role. Volunteer work, group exercise, or social clubs provide both cognitive engagement and emotional satisfaction. By blending physical well-being with intellectual curiosity and social connection, individuals cultivate an environment where the brain thrives naturally.

    A Lifelong Commitment to Brain Health

    Investing in mental well-being is one of the most rewarding steps a person can take. While genetics and aging remain unavoidable, thoughtful everyday decisions hold extraordinary preventive power.

    Building habits that enhance cognitive decline prevention, such as regular exercise, mental stimulation, balanced eating, and social activity, helps sustain brain function well into later life.

    Healthy aging is not about evading time but rather preserving vitality within it. Through awareness, discipline, and self-care, the human brain can remain resilient, adaptive, and vibrant for decades. The earlier these practices begin, the stronger the foundation for lifelong memory, creativity, and quality of life.

    Frequently Asked Questions

    1. Does technology use affect brain aging?

    Moderate tech use, like learning new apps or playing strategy games, can sharpen thinking. Excessive screen time, however, may cause fatigue and weaken focus. Balancing digital activity with physical and social engagement supports healthy brain aging.

    2. How does gut health influence cognitive function?

    A balanced gut microbiome helps regulate mood and memory through the gut-brain connection. Eating fiber-rich and probiotic foods reduces inflammation and may lower dementia risk.

    3. Are creative hobbies beneficial for brain health?

    Yes. Creative activities like painting or music stimulate multiple brain areas, strengthen memory, and boost mental flexibility, all helpful for cognitive decline prevention.

    4. Can chronic pain impact cognitive decline?

    Chronic pain can affect memory and attention by raising stress and disrupting sleep. Managing pain through medical care and relaxation practices helps protect cognitive function.



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  • Is It Normal Aging or Early Dementia? Key Memory Loss Causes and Alzheimer’s Early Signs to Watch For

    Is It Normal Aging or Early Dementia? Key Memory Loss Causes and Alzheimer’s Early Signs to Watch For

    Memory changes happen to everyone as they age. Occasionally misplacing keys or forgetting someone’s name is part of normal aging, and these moments usually don’t interfere with daily life. Dementia symptoms, however, involve ongoing cognitive decline that affects independence, decision-making, and routine tasks. The difference lies in consistency and impact. When memory problems begin to disrupt familiar activities or relationships, they shift from typical aging into something that needs medical attention.

    Memory loss causes vary widely. Some stem from simple stress, medication effects, or lack of sleep. Others point to Alzheimer’s early signs, where changes slowly build and progress over time. Understanding the difference helps people seek care sooner, protect cognitive function, and avoid mistaking serious symptoms for minor forgetfulness. Recognizing what’s normal and what’s not allows for timely evaluation and early intervention.

    Everyday Memory Lapses vs Progressive Dementia Symptoms

    There is a clear line between everyday forgetfulness and the more serious dementia symptoms that interfere with functioning. Normal age-related lapses tend to be occasional and improve with reminders, while dementia symptoms escalate slowly and become more consistent over months or years.

    1. Forgetting recent events but recalling them later is typical aging. People might miss an appointment or overlook a detail, but the memory returns when prompted. Dementia symptoms involve forgetting the same information repeatedly and needing constant reminders.
    2. Word-finding struggles improve with cues in normal aging. A person may momentarily forget a word but quickly find it again with context. Dementia symptoms make communication difficult because language retrieval becomes unpredictable and conversations break down.
    3. Misplacing items is common, but tracing them logically is preserved. If someone loses their glasses, they can usually retrace steps. Dementia symptoms lead to placing objects in illogical locations, like keys in the refrigerator, and forgetting the reasoning behind it.
    4. According to the National Institute on Aging, normal aging does not significantly affect the ability to perform daily activities, while dementia disrupts problem-solving, routine tasks, and self-care.
    5. Judgment and reasoning differ sharply. Aging adults may take longer to make decisions but typically reach logical conclusions. Dementia symptoms cause confusion and difficulty weighing options, especially under stress.
    6. Memory decline in dementia affects safety. Wandering, leaving appliances on, or forgetting to lock doors are red flags that go beyond typical forgetfulness.

    Everyday lapses are frustrating. Dementia symptoms, however, reshape how someone navigates their entire day.

    Beyond Memory: Alzheimer’s Early Signs in Daily Functioning

    Dementia involves more than memory loss. Alzheimer’s early signs include subtle behavioral and functional shifts that others may notice first.

    1. Poor judgment and financial mistakes appear early. Adults who once managed money well may overpay bills, miss payments, or fall for scams. According to the Alzheimer’s Association, impaired judgment is one of the earliest markers of cognitive decline.
    2. Disorientation in familiar places increases. Getting lost during routine trips or feeling confused in known environments signals changes in spatial awareness linked to Alzheimer’s early signs.
    3. Personality changes emerge. Withdrawal from social activities, irritability, or decreased motivation can reflect early neurological changes rather than mood shifts.
    4. Task abandonment becomes common. People may start cooking and forget to finish, or begin a project and lose track of steps. While normal aging slows task speed, Alzheimer’s early signs interrupt the task entirely.
    5. Progression differentiates the condition. Alzheimer’s early signs worsen gradually and consistently. Normal aging plateaus, but neurodegeneration does not.
    6. Awareness declines. Individuals may deny or fail to notice changes, while family members observe increasing confusion or anxiety.

    Recognizing these early functional shifts helps prompt assessment before significant decline occurs.

    Lifestyle Factors and Memory Loss Causes You Should Know

    Memory loss causes extend beyond dementia and can be reversible. Understanding these factors helps prevent misdiagnosis and supports better cognitive health.

    1. Stress and sleep deprivation impair memory. Chronic stress elevates cortisol, which affects recall and concentration.
    2. Medications play a major role. Antihistamines, sleep aids, and certain blood pressure drugs may cause forgetfulness.
    3. Vitamin deficiencies contribute to memory problems. According to Harvard Medical School, low B12 levels can mimic early dementia symptoms but are fully treatable once identified.
    4. Depression often looks like cognitive decline. People withdraw, lose interest, and appear forgetful, but treating the mood disorder often restores clarity.
    5. Head injuries affect long-term cognition. Even mild concussions can impact memory decades later, especially in older adults.
    6. Chronic conditions matter. Thyroid disorders, infections, and uncontrolled diabetes all impact concentration, recall, and decision-making.
    7. Alcohol use affects brain function. Excessive drinking damages memory centers and accelerates cognitive aging.
    8. Lifestyle patterns influence risk. Sedentary habits, poor diet, and lack of mental stimulation increase the likelihood of cognitive decline.

    Identifying these factors helps separate benign memory loss causes from more serious dementia symptoms.

    Conclusion

    Understanding when memory lapses become concerning helps people take action sooner. While normal aging brings occasional forgetfulness, dementia symptoms disrupt independence, daily routines, and decision-making. Recognizing Alzheimer’s early signs allows families to pursue testing, treatment approaches, and safety planning when it matters most.

    Not all memory loss causes dementia. Many are reversible with lifestyle adjustments, medical care, or improved mental habits. Paying attention to patterns, changes in behavior, and early red flags supports healthier aging and ensures that anyone experiencing symptoms gets the right evaluation at the right time.

    Frequently Asked Questions

    1. What memory loss causes mimic early dementia symptoms?

    Vitamin deficiencies, thyroid problems, depression, and medication effects can all resemble dementia.

    2. How do Alzheimer’s early signs differ from normal aging?

    They affect daily functioning, increase over time, and include behavioral or judgment changes, not just forgetfulness.

    3. When does occasional forgetfulness become dementia symptoms?

    When memory problems disrupt routine tasks, repeat frequently, or interfere with independence.

    4. Can lifestyle changes reverse memory loss causes?

    Yes. Treatable conditions, improved sleep, exercise, better diet, and stress management can restore memory clarity.



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  • Got Memory Issues? Here’s How To Tell If It’s Dementia Or Just Aging

    Got Memory Issues? Here’s How To Tell If It’s Dementia Or Just Aging

    Who has not forgotten a name, occasionally misplaced things, or stumbled over the right word during a conversation? However, with growing awareness about dementia, these occasional memory lapses often leave people wondering if it could be an early sign of dementia.

    As people get older, you might notice that it takes a little longer to remember things than it once did, but most of the time, there is no cause for concern. This occasional forgetfulness is called age-associated memory impairment and is a normal part of aging. Although it may feel frustrating, it does not mean you have dementia.

    Although many people confuse normal aging with dementia, the two are very different. Dementia often begins with mild memory loss but progressively worsens over time. In normal age-related memory changes, forgetfulness tends to be occasional and typically involves memories from the more distant past. In contrast, people with dementia frequently struggle with recent events, such as forgetting a conversation they had earlier that day or not recognizing someone they just met.

    Dementia is not just about memory loss. It also brings confusion, difficulty managing everyday tasks, trouble with language and understanding, and noticeable changes in behavior. Over time, these challenges interfere with a person’s ability to perform daily activities and can significantly affect their independence.

    However, it is important to remember that noticing symptoms like memory loss or confusion is not enough to diagnose dementia. Only a healthcare professional can make that diagnosis after a thorough evaluation. This typically involves medical history, cognitive tests, physical exams, and sometimes brain imaging to rule out other possible causes.

    Memory issues can also stem from a variety of other causes, including head injuries like concussions, brain tumors or infections, thyroid or organ problems, medication side effects, mental health conditions like depression and anxiety, substance misuse, sleep disturbances, or even deficiencies in key nutrients such as vitamin B12 and poor nutrition.

    When to see a doctor?

    If memory problems start interfering with daily life, it is important to see a doctor. Warning signs include repeating the same questions over and over, getting lost in familiar places, or struggling to manage personal care.

    In some cases, older adults may be diagnosed with mild cognitive impairment (MCI), a condition where memory or thinking problems are more noticeable than in others their age. However, unlike dementia, people with MCI can usually manage their daily activities independently, but it can sometimes be an early sign of Alzheimer’s disease.

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  • Vaccine To Protect Against Dementia? This One Reduces Risk By 20%

    Vaccine To Protect Against Dementia? This One Reduces Risk By 20%

    As dementia and Alzheimer’s cases continue to rise, researchers are exploring new ways to curb their impact. But a surprising breakthrough suggests that protection might already be within reach. A recent study suggests that shingles vaccine, which protects against the painful viral rash, may also reduce the risk of dementia in older adults.

    Earlier studies have shown that there is reduced dementia risk among those vaccinated with shingles. However, many were biased, as vaccinated individuals tend to be more health-conscious, making it difficult to determine whether the vaccine itself offered protection or if lifestyle factors like diet and exercise played a role.

    To address this, researchers at Stanford Medicine took advantage of an unusual public health policy in Wales. In 2013, a shingles vaccination program set strict age-based eligibility rules: those who were 79 on September 1 could receive the vaccine that year, while those who turned 80 before the cutoff were never eligible.

    The two groups had similar education levels, vaccination habits, and rates of conditions like diabetes and heart disease. This created a unique opportunity to compare two nearly identical groups, differing only in vaccine access, allowing researchers to isolate the vaccine’s true impact from lifestyle factors.

    “What makes the study so powerful is that it’s essentially like a randomized trial with a control group — those a little bit too old to be eligible for the vaccine — and an intervention group — those just young enough to be eligible,” said Dr. Pascal Geldsetzer, senior author of the study in a news release.

    The study showed that those who received the shingles vaccine were 20% less likely to develop dementia over the next seven years than those who did not receive the vaccine. The researchers also noted that the protection against dementia was notably stronger in women than in men. This is possibly due to sex differences in immune response or the difference in the way dementia develops.

    “For the first time we are able to say much more confidently that the shingles vaccine causes a reduction in dementia risk. If this truly is a causal effect, we have a finding that’s of tremendous importance,” Dr. Geldsetzer added.

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  • Just 5 Minutes Of Daily Exercise Reduces Dementia Risk By 41%

    Just 5 Minutes Of Daily Exercise Reduces Dementia Risk By 41%

    Staying active is one of the most effective ways to support long-term health and lower the risk of dementia. However, not everyone has the time, ability, or motivation for structured workouts every day. Here’s some good news- new research suggests even small amounts of movement can still give significant protection against dementia.

    A recent study published in the Journal of Post-Acute and Long-Term Care Medicine found that just 35 minutes of moderate to vigorous physical activity per week, which is about 5 minutes a day, lowered the risk of developing dementia by 41% compared to those who never exercised.

    “Our findings suggest that increasing physical activity, even as little as five minutes per day, can reduce dementia risk in older adults. This adds to a growing body of evidence that some exercise is better than nothing, especially with regard to an aging-related disorder that affects the brain that currently has no cure,” said lead author Amal Wanigatunga in a news release.

    The findings were made after following up nearly 90,000 adults with an average age of 63, for about 4.4 years. During the study period, the researchers tracked the physical activity levels and health of the participants and noted that 735 of them developed dementia. On average, participants engaged in 126 minutes of moderate to vigorous physical activity per week.

    The study found that for every additional 30 minutes of moderate to vigorous physical activity per week, the risk of developing dementia decreased by 4%. While even small amounts of movement help, the researchers noticed a clear pattern, a dose-response relationship between exercise and reduced dementia risk. This means that more people exercised, the greater the benefits.

    Those who engaged in 36 to 70 minutes of moderate to vigorous activity per week saw their dementia risk drop by 60%, while those who exercised for 71 to 140 minutes experienced a 63% reduction. The biggest impact, however, was among individuals who exceeded 140 minutes per week, slashing their risk by an impressive 69%.

    “Our results suggest engaging in any additional amount of MVPA [moderate to vigorous physical activity] reduces dementia risk, with the highest benefit appearing among individuals with no MVPA. These associations are not substantially modified by frailty status,” the researchers concluded.

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  • Obesity’s Impacts on Our Brain, Dementia, and Fertility 

    Obesity’s Impacts on Our Brain, Dementia, and Fertility 

    Weight loss can decrease dementia risk and improve mental performance and fertility.

    As I’ve discussed previously, in the ABCs of the health consequences of obesity, A is for Arthritis, B is for Back Pain and Blood Pressure, C is for Cancer, and D is for Diabetes. That brings us to E, which is for Encephalopathy.

    Encephalopathy means brain disease. There are consistent data linking obesity in middle age to a higher risk of dementia later in life. Researchers found that individuals who are overweight have about a one-third higher risk of dementia and those who are obese in mid-life have about 90 percent greater risk. The risk isn’t limited only to future dysfunction, though. People with excess body weight don’t appear to think as clearly at any age.

    “It was found that obese participants showed broad impairments on executive functions” of the brain, including working memory, decision-making, planning, cognitive flexibility, and verbal fluency. “From resisting temptation to keeping long-term goals in mind, executive functions play a critical role in everyday life,” noted a meta-analysis and review of 72 studies on the issue.

    According to researchers, people may think about their obesity and the resulting stigma they experience as much as five times an hour, but the cognitive deficits do not appear to arise just from distraction; there are structural brain differences between individuals who are at an ideal weight versus overweight.

    A review entitled “Does the Brain Shrink as the Waist Expands?” noted gray matter atrophy across all ages among those carrying excess body fat. It’s this reduced brain volume that has been correlated with lower executive function. As you can see below and at 1:42 in my video The Effects of Obesity on Dementia, Brain Function, and Fertility, compromised integrity of the rest of the brain—the white matter—suggests accelerated brain aging, even in young adults and children with obesity. 

    Cognitive deficits in younger populations suggest there’s something about obesity itself that is affecting brain function, rather than a later clinical consequence, such as high blood pressure. Purported mechanisms for this executive dysfunction include obesity-related inflammation and oxidative stress.

    So, does weight loss improve cognitive function? Based on a meta-analysis of 20 studies, researchers found that mental performance across a variety of domains can be significantly improved with even modest weight loss. However, no studies have yet to be done to determine if this then translates into a normalization of Alzheimer’s disease risk.

    Back to the ABCs of obesity’s health consequences, F is for Fertility—or rather failed fertility. “Overweight and obese persons seeking fertility should be educated on the detrimental effects of fatness and the benefits of weight reduction, including improvement in pregnancy rates,” one meta-analysis concluded. Men also may suffer impaired fertility. The heavier a man is, the greater his risk of having a low sperm count or being completely sterile, as you can see below and at 3:01 in my video. This may be due in part to the effects of excess body fat on testosterone levels. 

    Fat isn’t the primary site of estrogen production in only postmenopausal women, but in men, too. An enzyme in body fat converts testosterone into estrogen. Men losing weight and going from obese to overweight could potentially raise the testosterone levels in their blood by 13 percent.

    A more dramatic cause of infertility in obese men is called a “hidden penis.” The condition, which is also described in the medical literature as a “hidden, buried, concealed, trapped, and inconspicuous” penis, occurs when excess fat in the pubic area subsumes the penis (since its base is attached internally to the pubic bone). The moist enfolding skin surfaces can result in chronic inflammatory dermatitis leading to scarring and requiring a surgical intervention.

    If you missed the previous blog posts, I covered The Best Knee Replacement Alternative for Osteoarthritis Treatment and The Effects of Obesity on Back Pain, Blood Pressure, Cancer, and Diabetes.

    I continue the topic of obesity and weight with videos in the related posts below.

    I cover all of this and more at length in my book How Not to Diet, and its culinary companion, The How Not to Diet Cookbook, has more than 100 delicious, weight-conscious recipes. Request them from your local library. 

    For more on the health conditions discussed in this video, see the Alzheimer’s disease, cognition, and fertility topic pages.  



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  • Cardiovascular Fitness May Lower Dementia Risk, Even For Those With Genetic Predisposition, Study Finds

    Cardiovascular Fitness May Lower Dementia Risk, Even For Those With Genetic Predisposition, Study Finds

    Regular exercise is known to prevent chronic conditions and slow cognitive decline. New research suggests that cardiovascular fitness, the body’s ability to deliver oxygen to muscles during exercise, could also play a crucial role in reducing dementia risk.

    A recent study found that improved cardiorespiratory fitness is linked to better cognitive performance and a lower risk of dementia, even among those genetically predisposed.

    As people age, cardiovascular fitness typically declines by 3% to 6% every decade in their 20s and 30s. However, this decline accelerates to over 20% per decade once individuals reach their 70s. With reduced fitness, there is an increased risk of cardiovascular events such as strokes and heart attacks and mortality from all causes, according to the researchers of the latest study.

    The study evaluated 61,214 participants between the ages of 39 and 70 enrolled in the UK Biobank study between 2009 and 2010. The participants did not have dementia and were followed for up to 12 years.

    The researchers assessed the cardiorespiratory fitness of participants at the beginning of the study by conducting a 6-minute submaximal exercise test on a stationary bike. While neuropsychological tests were used to evaluate cognitive function, the participant’s genetic predisposition for dementia was estimated using the polygenic risk score.

    During the follow-up, 553 people were diagnosed with dementia. Based on the cardiorespiratory fitness scores, the participants were divided into three equal-sized groups standardized by age and sex.

    The analysis revealed that people with higher fitness scores were 40% less likely to develop dementia than those with lower scores. Also, dementia onset was delayed by nearly 1.5 years for those with high scores.

    The researchers noted that in those with a moderate to high genetic risk of dementia, high cardiovascular fitness reduced their risk of developing dementia by 35%.

    Since the study is observational, the researchers could not establish a direct cause-and-effect relationship. They noted some limitations, including the potential underestimation of dementia cases, as UK Biobank participants are healthier than the general population. Individuals with certain health conditions were excluded from the exercise test, making the study group healthier which may have impacted the findings.

    However, based on the current findings, the researchers suggest that “enhancing CRF could be a strategy for the prevention of dementia, even among people with a high genetic predisposition for Alzheimer’s disease.”

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  • Taking Pills For Cardiovascular Diseases? They May Also Protect Against Dementia, Study Says

    Taking Pills For Cardiovascular Diseases? They May Also Protect Against Dementia, Study Says

    Taking medications for cholesterol and blood pressure might seem like a health burden for many. But there’s good news for those who have to depend on cardiovascular medications. Researchers have found that beyond their cardiovascular benefits, long-term use of these drugs, especially when used in combination, may offer protection against dementia.

    The latest study conducted by Karolinska Institutet in Sweden revealed the use of common cardiovascular drugs for more than five years is associated with a reduced risk of dementia later in life.

    “Previous studies have focused on individual drugs and specific patient groups but in this study, we take a broader approach,” said Alexandra Wennberg, a lead author of the paper.

    The study analyzed dementia risk using data from Swedish national registers, involving around 88,000 individuals over the age of 70 who were diagnosed with dementia between 2011 and 2016. It also included 880,000 control participants. The researchers obtained data about the participants’ use of cardiovascular drugs from the Swedish Prescribed Drug Register.

    “The results show that long-term use of antihypertensive drugs, cholesterol-lowering drugs, diuretics, and blood-thinning drugs is associated with between 4 and 25 percent lower risk of dementia. Combinations of the drugs had stronger protective effects than if they were used alone,” the news release stated.

    However, the researchers noted that the use of antiplatelet drugs for stroke prevention may be associated with a higher risk of dementia. This could be due to the increased risk of microbleeds in the brain caused by these drugs, which are linked to cognitive decline.

    “The association between the use of common cardiovascular drugs and dementia risk suggests that these pathways may be explored for the development of dementia treatment though future research is necessary. Conversely, because antiplatelets are commonly used, it is important to further understand any long-term negative effects on cognitive outcomes.

    Researchers believe that the new finding adds an important piece of the puzzle for finding new treatments for dementia. Also, since the study observed cognitive decline associated with antiplatelet use, it highlights the need to consider their potential long-term cognitive effects when prescribing these medications.

    “We currently have no cure for dementia, so it’s important to find preventive measures,” said Wennberg.

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