Decades of research has found that exercise is helpful for overall health and fitness, doing everything from lowering your risk of heart disease to helping you sleep better. According to a new study, ...

If you believe you possess eyes as sharp as a hunter and a mind as fast as a supercomputer, take this optical illusion ...

Add Yahoo as a preferred source to see more of our stories on Google. Research shows that crossword puzzles are effective in improving memory. (Getty Images) (artisteer via Getty Images) There is no ...

The short-term boost our brains get after we do exercise persists throughout the following day, suggests a new study. The short-term boost our brains get after we do exercise persists throughout the ...

We're all familiar with the groggy out-of-it feeling that can linger after sneaking in a quick nap. It can almost be enough to make you wish you'd just reached for a second cup of coffee to get ...