We all know what it feels like not to get enough sleep. And the scary thing is that the effects are almost instantaneous. Insufficient sleep has been linked to car crashes, industrial disasters and medical errors.

From death to drug addiction, divorce to disease, the following 10 celebrities handled the cards life dealt them with grace and strength. Their stories show how everyday folks can make it through these sorts of challenges, too.

In a new interview, Kevin Hart reveals the one phrase that helps him out on a bad mental health day.

Cat people can get a bad rap. From “crazy cat ladies” to the assumption that cat fans hate other people, there are a lot of negative associations. But cat lovers do have a lot of positive traits in common, many of them backed by science.

Instagram's CEO has confirmed that the app will soon unveil a "time spent" usage feature, allowing users to monitor their time more accurately.

Believe it or not, there are times when stress can be healthy for your body and mind. We actually need stress--the good kind — to help us stay motivated and reach our goals. Here are five times in your life when stress is actually good for you.

How can you prepare for the anniversary of a loved one's death? It can be an emotional, and often fraught, experience. Giving yourself the time and space to decide how to make it is key for your mental health.

A good night's sleep and a great sex life — not money — are the key to happiness, finds a new study.

If you look closely enough, you can tell when most people are lying. The concept of body language changing during a lie spawned an entire television show, “Lie to Me.” Even “Bachelorette” winner Jordan Rodgers has faced scrutiny for his lack of eye contact with his damsel while proclaiming his devotion.

Barriers of insecurity and low self-esteem can be removed by recognizing and applying the power you have to control your thoughts and face your fears.

Dwayne "The Rock" Johnson urged his followers to open up about their mental health in a recent Tweet.

Moist is the most hated word in the English language, and one researcher has finally figured out why.