From front-page news to powerful moments you may have missed, this gallery showcases today’s top photos chosen by Associated ...

An orphaned black bear cub in California is being cared for by biologists in fur coats and bear masks. The baby bear was ...

The length of your nap and the type of sleep you get help determine the brain-boosting benefits. The 20-minute power nap -- sometimes called the stage 2 nap -- is good for alertness and motor ...

Need to recharge? Don't depend on a cup of coffee -- a power nap will boost your memory, cognitive skills, creativity, and energy level. A short snooze is an economical (and easy) way to boost mental ...