Aging

Recent research adds to a growing body of knowledge that links hearing loss with cognitive decline, which is a hallmark of dementia and often precedes the disease. Research suggests a link between hearing loss and cognitive decline. After analyzing 8 years of data from a health study of more than 10,000 men, scientists at Brigham
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Women tend to live longer than men, a difference that seems to apply to female versus male individuals across the animal kingdom. Why is this the case? What gives women their longevity? Genetically, most women have two X chromosomes, and most men have one X and one Y chromosome. X chromosomes contain hundreds of protein-encoding
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Recent research reveals that leaky capillaries in the brain could have a role in the development of Alzheimer’s disease. Changes in blood vessel permeability offer new clues about the onset of dementia. Dementia, the main type of which is Alzheimer’s disease, affects about 50 million people worldwide. According to the Alzheimer’s Association, over 5 million
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Alzheimer’s disease is a form of neurocognitive decline that affects millions across the world. The exact cause is unclear, but new research is uncovering the mechanisms that allow Alzheimer’s to become established in the brain. Which brain cells are the most vulnerable to Alzheimer’s? In Alzheimer’s disease, as in other forms of dementia, a defining
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In a new study, researchers have found that a bacterium largely responsible for gum disease also contributes to the development of Alzheimer’s disease. A bacterium involved in gum disease boosts Alzheimer’s toxicity. According to data from the National Institute of Dental and Craniofacial Research, 8.52 percent of adults between 20 and 64 years of age
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New research suggests that stools from so-called “super donors” have such rich microbial diversity that using them for fecal transplants could cure conditions ranging from inflammatory bowel disease to Alzheimer’s and multiple sclerosis. Scientists have found that stool samples from ‘super donors’ hold the potential for curing a wide range of conditions. Recently, a growing
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Recent research suggests that doing even low-intensity physical activity allows older people to reduce their risk of dementia. Carrying out even basic activities in older age might help maintain brain health. Several factors can affect a person’s chance of developing dementia. Some of the factors, such as age and genetics, are unavoidable. Others, such as
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New research finds that a 6-month regimen of aerobic exercise can reverse symptoms of mild cognitive impairment in older adults. Just 6 months of exercise that raises the heart rate can reverse signs of age-related cognitive impairment. Mild cognitive impairment (MCI) is characterized by a mild loss of cognitive abilities, such as memory and reasoning
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A recent study has uncovered further evidence of an association between diet and healthy brain aging. Eating a diet rich in fruits and vegetables can promote healthy brain aging. It found links between blood markers of certain nutrients in the Mediterranean diet and mental performance and brain connectivity in older adults. Previous research suggested that
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Scientists have uncovered a mechanism through which a toxic brain protein that is a hallmark of Alzheimer’s disease can damage neurons, or brain cells. New research uncovers the mechanism that leads to the progressive loss of brain cells that characterizes Alzheimer’s disease. The team at the Grenoble Institute of Neurosciences in France that made the
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New research suggests that vital exhaustion, a marker of psychological distress, may raise the risk of developing Alzheimer’s disease. Psychological distress in midlife may bring about dementia later on, suggests new research. Many factors may increase Alzheimer’s risk, including age, family history, and genetic makeup. Certain health issues, such as cardiovascular disease or diabetes, may
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A drug that scientists are currently developing to treat stroke survivors might also help stave off Alzheimer’s disease. Researchers are trialing a new treatment that may help people with early-stage Alzheimer’s disease. Alzheimer’s disease is the most common form of dementia. According to the Alzheimer’s Association, 5.7 million people in the United States are living
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Exercise is a vital element of a healthful lifestyle; it helps maintain heart health, improve mood, and fight weight gain. New research also suggests that it can protect a person’s cognitive skills, and a new study uncovers fresh information as to how this can happen. How does exercise help protect memory? According to a study
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Scientists have discovered an unknown genetic mechanism of cell metabolism that becomes increasingly dysfunctional with aging. Is it possible to combat aging? Researchers at the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland suggest that their findings could lead to new targets for treatments to combat aging and age-related conditions. Their discovery concerns a protein
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New research, published in the journal Nature Genetics, identifies new genetic risk factors for Alzheimer’s disease. It also uncovers novel biological mechanisms that may lead to this neurodegenerative condition. Scientists have found new genetic locations associated with Alzheimer’s. About 5.7 million people in the United States are currently living with Alzheimer’s disease. A recent report
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A new study in mice reveals that Candida albicans — a fungus largely perceived as harmless — can cause memory problems and brain abnormalities that resemble those characteristic of Alzheimer’s disease. C. albicans is the most common and best-studied cause of fungal infections in humans. Candida albicans is a species of fungus that grows naturally
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Recent research into aging has challenged the notion that colder temperatures can increase lifespan simply by slowing metabolic rate. How much impact does a colder temperature really have on lifespan? Instead, it has revealed that genes determine the extent to which low temperature can influence a person’s lifespan. The research is the work of scientists
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