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Alzheimer's Disease Archive

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Will getting more sleep help protect me from dementia?

A study published online April 20, 2021, by the journal Nature Communications suggests thatgetting too little sleep in midlife increases the risk for dementia later in life. Researchers analyzed the sleep data of 8,000 middle-aged adults who were followed for 25 years. People who slept six hours per night at age 50 were 22% more likely to develop dementia, compared with people who slept seven hours. People who slept six hours per night at age 60 were 37% more likely to develop dementia, compared with people who slept seven hours. The study was observational and can't prove causation.

Exercise can add to your sense of purpose — and vice versa

Researchers found that being active increases one’s sense of purpose in life, and that the opposite was also true—having a strong purpose in life makes it more likely a person will stay active.

High blood pressure? Treat the risk, not the number

People with a high risk for heart attacks and strokes might benefit from taking blood pressure–lowering medications, even if their blood pressure is in the normal or "high normal" range and they have no clear signs of cardiovascular disease.

Chronic gut inflammation: Coping with inflammatory bowel disease

Chronic inflammation in the gut may be due to inflammatory bowel disease, such as Crohn’s disease or ulcerative colitis. It’s unclear what causes IBD. Doctors suspect it’s a combination of factors, such as eating an unhealthy diet or using certain medications; altered gut bacteria; having a leaky gut; or genetics. The goal of IBD treatment is remission: suppressed symptoms, lower blood levels of inflammatory markers, and normal-looking bowel and tissue biopsies. Approaches to achieve remission and prevent flare-ups include medication, a healthy lifestyle, and possibly surgery.

The benefits of volunteering, without leaving home

Volunteering has many benefits, enabling people to gain a sense of purpose, connect with others, and get a break from their own problems. Those benefits are associated with better health, including greater levels of physical activity, better sleep quality, a healthier diet, reduced rates of cardiovascular disease, and even longevity. A person may be able to reap many of those benefits by volunteering from home, such as doing work for a nonprofit group via computer or phone.

The book of neurogenesis

The brain can continue to produce new neurons as people age, even late into life, through a process called neurogenesis. Right now, scientists are looking at why neurogenesis especially happens in the hippocampus, the region responsible for learning information and storing memories. Animal studies have shown that regular aerobic exercise is associated with an increased production of neurons in the hippocampus. If the same is true in humans, it may be the reason for the observed link between physical activity and maintaining cognitive fitness, and perhaps a lower risk of dementia.

Nicotine addiction explained — and how medications can help

Addiction is now understood to be a neurological disorder that results from changes to the brain's reward center caused by addictive substances. Ideally, treatment for nicotine addiction combines medication to suppress cravings with counseling to help patients reprogram their behavior.

Is your vision impaired? Tips to cope

Living with low or impaired vision comes with many challenges. Accessibility features on computer hardware and software, special devices, and adaptations to your home can help make daily life easier when living with a vision impairment.

Misgendering: What it is and why it matters

For people who are transgender or nonbinary, being misgendered may be a daily occurrence. When this happens, people feel invalidated and unseen, and the burden can negatively affect their mental health. Making the effort to use the right names, pronouns, and honorifics when addressing a person shows respect and support for those around you and how they identify themselves.

Stories connect us

Research has shown that social isolation is bad for our health. Sharing our personal stories helps connect us, and it is an important aspect of maintaining mental health and managing chronic conditions.

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