(CNN) — Editor’s note: The podcast Chasing Life With Dr. Sanjay Gupta explores the medical science behind some of life’s mysteries big and small. You can listen to episodes here. Science has pretty ...

Some 2.3 million of U.S. adults older than 65 — more than 4% — have a diagnosis of dementia. But even without a diagnosis, a certain amount of cognitive decline is normal as age sets in. And whether ...

Dementia is a progressive condition that affects memory, thinking, and overall cognitive function. As people age, the risk of developing dementia increases, making it crucial to adopt brain-healthy ...