Skip to main content

Alzheimer's Disease Archive

Articles

Too much coffee may raise dementia risk

Drinking coffee daily can provide a welcomed mental jolt for many people. But new research suggests regular coffee drinkers should stop at five or six cups per day, as drinking more may increase their risk for dementia.

Less may be more when treating urinary tract infections

Researchers found that treating urinary tract infections with antibiotics for seven days was just as effective as treatment lasting 14 days. The shorter duration also can reduce the risk of medication side effects like diarrhea and nausea.

Why are mRNA vaccines so exciting?

The  first vaccines approved in the US to prevent COVID-19 were an entirely new type: mRNA vaccines. Over the past year, they've proven unusually effective and safe. How do mRNA vaccines differ from traditional vaccines, and what makes them so exciting?

Taming the chronic inflammation of psoriasis

Psoriasis is a chronic inflammatory condition in which the immune system attacks the skin. It causes painful skin lesions and may also lead to psoriatic arthritis, hypertension, diabetes, chronic kidney disease, or coronary artery disease. Psoriasis treatments include topical steroids, gentle exfoliant lotions, emollients that keep the skin hydrated, ultraviolet light (phototherapy), laser therapies, vitamin A (retinoid creams), and medications (for moderate-to-severe psoriasis). People with psoriasis are encouraged to get vaccinated against COVID-19 with an mRNA vaccine (from either Pfizer or Moderna) as soon as possible, if they haven’t already done so.

4 reasons for tingling or numbness in the arms and legs

There are lots of reasons for numbness or tingling in the limbs. Constant or recurrent symptoms point to a potentially serious cause. One possibility is peripheral neuropathy, which damages nerves throughout the body. Another is peripheral artery disease—a narrowing of the arteries in the limbs that reduces blood flow. Another is nerve compression, which might be caused by sciatica (irritation of the sciatic nerve in the legs) or spinal stenosis (narrowing of the spinal canal). When numbness or tingling persists, one should report the symptoms to a doctor right away.

Mentally challenging jobs may reduce the risk of dementia

People with jobs that are more mentally stimulating may have a lower risk of dementia later in life.

Diets rich in flavonoids linked to better brain health

Diets rich in plant chemicals called flavonoids may help protect the brain.

Casing the joints

Osteoarthritis is the most common type of arthritis among older adults. Often called the "wear and tear" disease, osteoarthritis doesn’t occur because of overusing or stressing one’s joints. While there is no cure for osteoarthritis, people can lower their risk or better manage the condition by losing excess weight, strengthening the muscles surrounding joints, and using over-the-counter pain medication as needed.

Should I be worried about fatty liver disease?

People with nonalcoholic fatty liver disease, which is fatty liver not caused by high alcohol intake, should refrain from most drinking and lose weight to avoid cirrhosis and lower their risk of liver cancer.

Health and happiness go hand in hand

People who describe themselves as happy tend to have fewer health problems, a lower risk of depression, and longer lives. Research suggests that, on average, 50% of people’s general level of happiness is determined by genetics, with the rest dependent on the individual’s perception and specific circumstances. Some research suggests that people can adopt various strategies that can increase happiness, from forming stronger social bonds to investing in experiences to interacting more with outdoor green spaces.

Free Healthbeat Signup

Get the latest in health news delivered to your inbox!

Sign Up
Harvard Health Publishing Logo

Thanks for visiting. Don't miss your FREE 32-page gift worth $29.95.

PLUS, don’t miss out on your 25% off promo code.

Sign up to get tips for living a healthy lifestyle—You’ll discover powerful, research- backed strategies for health longevity drawn from Harvard Medical School experts—ways to eat for a longer life, build strength and flexibility to stay independent, protect your bones, heart, and brain as you age, and even cultivate the habits linked with “super-agers” who stay sharp and active well into their 80s and 90s—all delivered to your email box FREE.

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of Living Longer, Living Well!.

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of Living Longer, Living Well.