Alzheimer's Disease Archive


Some blood pressure drugs may lower dementia risk

Taking antihypertension drugs to lower blood pressure that also stimulate type 2 and 4 angiotensin II receptors in the brain may offer protection against Alzheimer’s disease and other dementias.

Managing the unthinkable

One in 10 Americans ages 65 and older has dementia. The condition is likely to progress slowly, offering couples the opportunity to adopt coping strategies that can smooth their path. Early on, you can consider treatment that may temporarily improve memory and thinking problems. People whose partners have been diagnosed should get informed about dementia, attend doctor’s visits, take over certain tasks, keep routines, update legal documents, and join a support group.

It may not be too late to protect against dementia

Older adults can still lower their risk for dementia by taking medication to decrease their high blood pressure, according to a recent study.

Taking more steps a day might reduce dementia risk

People who take between 3,800 and 9,800 steps daily may reduce their risk for dementia, and walking at a brisk pace could offer even more protection, according to a 2022 study.

New details about loneliness and dementia risk

A 2020 study found that people defined as lonely had a higher risk of dementia than those who were not considered lonely. Loneliness also was associated with smaller brain sizes and poorer executive function (the ability to plan, focus attention, and remember instructions).

Making sense of dementia trends

Studies suggest that the world is facing two different dementia trends. One is that dementia rates are falling steadily in the United States and Europe. The other is that the number of dementia cases globally is rising, and will likely triple in the next 30 years, mostly due to population increases. People can try to reduce their dementia risk by adopting a healthy lifestyle that includes lots of exercise, a healthy diet, at least seven hours of sleep per night, limited alcohol consumption, socializing, improved balance, stress management, smoking cessation, and control of underlying health conditions.

Could cataract surgery bring brain benefits?

A 2021 study found that people who underwent cataract surgery (a procedure replace the lens of the eye) appeared to have a lower risk of developing dementia than those who had cataracts but did not undergo surgery.

Even light physical activity may help prevent dementia

Past research shows that exercise may help to prevent dementia. A new study found that this may be true even for people who only do light daily activity, such as errands or housework. People who got only a little exercise still had a lower risk of dementia than those who were inactive. The risk reduction, however, was not as large as that seen in people who exercised more. Adding small daily bouts of activity may still make a difference when it comes to brain health.

The worst habits for your brain

Many habits can contribute to poor brain health, but four areas can have the most influence. They are the four S’s: sitting, socializing, sleep, and stress. Research has found that poor habits in these areas can affect cognitive skills like memory, learning, and problem solving, and are linked to a higher risk of cognitive decline and Alzheimer’s disease. Adopting simple lifestyle changes may help.

Erectile dysfunction drug may lower Alzheimer’s risk

A 2021 study suggests that sildenafil (Viagra, Revatio), which is used to treat erectile dysfunction and pulmonary arterial hypertension, might also protect against Alzheimer’s disease.

Free Healthbeat Signup

Get the latest in health news delivered to your inbox!

Harvard Health Publishing Logo

Thanks for visiting. Don't miss your FREE gift.

The Best Diets for Cognitive Fitness, is yours absolutely FREE when you sign up to receive Health Alerts from Harvard Medical School

Sign up to get tips for living a healthy lifestyle, with ways to fight inflammation and improve cognitive health, plus the latest advances in preventative medicine, diet and exercise, pain relief, blood pressure and cholesterol management, and more.

Harvard Health Publishing Logo

Health Alerts from Harvard Medical School

Get helpful tips and guidance for everything from fighting inflammation to finding the best diets for weight loss...from exercises to build a stronger core to advice on treating cataracts. PLUS, the latest news on medical advances and breakthroughs from Harvard Medical School experts.

BONUS! Sign up now and
get a FREE copy of the
Best Diets for Cognitive Fitness

Harvard Health Publishing Logo

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

Plus, get a FREE copy of the Best Diets for Cognitive Fitness.