Worries on your mind

People who worried a lot about the future or repetitively thought about unchangeable past events were more likely to experience a significant decline in cognitive function and memory in a 2020 study. People with these negative thinking patterns also had more beta-amyloid and tau protein deposits in the brain, which can be a sign of early-stage Alzheimer’s disease. It’s possible, study authors said, that these negative thinking patterns raise stress hormone levels, which may lead to changes in the brain.