If you live in the northern latitudes, take heart: Spring will be here in less than a month. Even so, it’s still very possible to be suffering from seasonal affective disorder—and its less-serious sibling, known as “the winter blues”—through February and March. If the cold and dark have you feeling depressed, fatigued, socially isolated, brain-fogged or lethargic, there are some...

If your Valentine’s Day plans include digging something sweet out of a heart-shaped box, be warned: Studies show that those chocolate candies and conversation hearts can send your blood sugar on a hormone-driven roller coaster that can cause unwanted nighttime awakenings and hurt your overall quality of sleep.

We’ve all got that one friend who encourages us to “smile” when that’s the last thing we want to do. But prepared to get even more annoyed because … your friend is right. When researchers from the University of Tennessee Knoxville and Texas A&M pored over nearly 50 years of data—accumulated from 138 studies—they found that there is in fact...

If you think about it, many of life’s notable moments come with a soundtrack. The music on the radio when you had your first kiss, the music sung at religious services, Pomp and Circumstance at graduation, Pachelbel’s Canon during a wedding, your favorite music to run or work out to, Military taps at funerals for veterans, the sound of a...