Depression, anxiety and other measures of mental health are the worst during the middle of the week, researchers say.

A survey of about 50,000 adults shows we’re happiest in the mornings, but sad and anxious at night. Planning around those ...

A sleep expert details why you wake up groggy from a nap and how to make the most of your snack-sized slumber.

Tech titan David Sacks reveals the status of the country's tech race with China and why U.S. data centers are important on ...