Recent Blog Articles
Pouring from an empty cup? Three ways to refill emotionally
Give praise to the elbow: A bending, twisting marvel
Sneezy and dopey? Seasonal allergies and your brain
The FDA relaxes restrictions on blood donation
Apps to accelerometers: Can technology improve mental health in older adults?
Swimming and skin: What to know if a child has eczema
A muscle-building obsession in boys: What to know and do
Natural disasters strike everywhere: Ways to help protect your health
Dementia: Coping with common, sometimes distressing behaviors
Screening tests may save lives — so when is it time to stop?
Mind & Mood
Worries on your mind
People who regularly worried about the future and dwelled on the past saw larger drops in cognition and had more harmful brain proteins than those who didn't.
Chronic worrying or ruminating could be bad for your brain. A study published online June 7, 2020, by Alzheimer's & Dementia linked these negative thinking patterns to brain changes that could be associated with Alzheimer's disease.
Study authors found that older adults who regularly engaged in what the authors called repetitive negative thinking were more likely to experience cognitive decline, including memory problems, than those who didn't. They also had higher levels of the proteins beta-amyloid and tau in their brains. The accumulation of these proteins, which create damaging clumps known as plaques and tangles in the brain, is a hallmark of Alzheimer's that begins in the earliest stages of the disease — even before an individual experiences visible symptoms of dementia.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.Sign Me Up
Already a member? Login ».
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
Free Healthbeat Signup
Get the latest in health news delivered to your inbox!