See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. It's never too late to start living a healthy lifestyle. In fact, ...

Tests promising to reveal your “biological age” are booming. But scientists say the results vary widely — and aren’t reliable ...

Brain games are widely believed to sharpen your cognitive skills, especially as you age. But experts say there's no "magic ...

Our brains change more rapidly at various times of our lives, as though life’s clock was ticking faster than usual. Childhood, adolescence and very old age are good examples of this. Yet for much of ...