For decades, scientists have looked at various mechanisms responsible for the decline of our mental faculties as we age. A new discovery shows that the accumulation of a certain protein called the ...

Many older adults struggle with sleep as their brains fail to switch off, a study reveals. Insomniacs' brains remain alert due to a flattened circadian rhythm and persistent sequential thinking, ...

Habits can feel mysterious, arriving almost overnight or refusing to stick despite weeks of effort. New work on a “hidden switch” in the brain suggests those differences are not just about willpower, ...

That viral claim that your frontal lobe “isn’t fully developed until 25” turns out to be more myth than milestone. Early ...

Learn how caffeine affects brain chemicals and health, sleep, and mood. Understand safe daily limits, hidden sources, and signs you’re getting too much.

Add Yahoo as a preferred source to see more of our stories on Google. For decades, scientists have looked at various mechanisms responsible for the decline of our mental faculties as we age. A new ...