Mental Health

Whither the Good Samaritan? A new study finds the chance of receiving a stranger's aid in a public medical emergency is close to zero - and worse if you're black or poor.

By Jesslyn Shields

Is social media turning us all into raging narcissists? Probably not, but that doesn't mean your friends aren't sick of your selfies.

By Oisin Curran

Most animals don't feel shame, but humans do. Why would we evolve something that causes us pain, stress and discomfort?

By Jesslyn Shields

Brittany Maynard brought the issue of medically assisted suicide into the mainstream when she moved to Oregon to end her life. We'll look at the pros and cons of this difficult issue.

By Melanie Radzicki McManus

With 20 percent of U.S. women born after 1970 not having children, the question of who will provide elder care is becoming more urgent.

By Dave Roos

If you felt slightly ill after watching "Star Wars: The Force Awakens" in 3-D, you weren't alone. Although motion sickness is very common, scientists don't really know why we get it.

By Melanie Radzicki McManus

And you probably don't even realize you're doing it.

By John Donovan

If you've ever met someone who obsessively kept track of every perceived wrong committed against them, then you've met one. The problem is when they turn violent.

By Julia Layton

Audio description is kind of like that friend who whispers key plot points to you during the movie when you miss them. It's pretty handy for blind film buffs.

By Julia Layton

If you're aware you're dreaming and you face certain death, does the real you die when the dream you does? It's a mind-bending question.

By Laurie L. Dove

"Look on the bright side!" It's advice people have been doling out for ages, but could a positive outlook actually benefit your physical well-being?

By Maria Trimarchi

Are you up with the birds or burning the midnight oil? Or somewhere in between? The reason why you love getting up early, or hate it, has a lot to do with genetics.

By Alia Hoyt

Are you a human barometer? Do changes in the weather cause you physical pain? Read this and find out if you can really feel the weather right down to your bones.

By Jennifer Sellers

Girls have better taste than boys - as in the sense, that is. Find out why women's ability to distinguish between sweet and sour trumps mens'.

By Jennifer Sellers

Many of us who occasionally sacrifice sleep in favor of other tasks suffer the physical and mental side effects the next day. But what would happen if you never slept again?

By Laurie L. Dove

Imagine how much you could get done without the need for sleep. An extra six to eight hours every day seems like a dream come true. Has the future arrived? Are we ready to embark on a waking life? Read this to find out.

By Bambi Turner

It's no rinky-dink Mickey Mouse clock. The body clock is a strange and wonderful thing, calibrated to reflect a variety of biological rhythms that you may not have known are beating inside your body. And scientists are still not sure why it exists.

By Chris Opfer

Addiction manifests in many different ways. Substance abuse, compulsive gambling, shopping addiction -- but is it possible to become addicted to tattoos or piercings? Find out the psychology behind addiction and body modification.

By Debra Ronca

Could your ancestors be to blame for your overeating or excess spending? Unnecessary scapegoating is a lousy thing to do, but could there be some weight to this suggestion?

By Bambi Turner

Feel like sleep deprivation will be the death of you? It just might be, but perhaps you can curtail this devastating situation.

By Bambi Turner

There are many commonly held beliefs about fat that aren't entirely accurate. For example, muscle simply can't turn into fat.

By Maria Trimarchi

Ugh, the morning after the night before! Should you drink some coffee, lots of water or more liquor? Or have some bacon and eggs? There are lots of "remedies" out there for hangovers, most of which are useless.

By Melanie Radzicki McManus

Depression is a difficult condition to diagnose - a questionnaire is the primary method used these days. There are some promising diagnostic tools on the horizon, including a blood test. How reliable is this new test?

By Jennifer Sellers

Insomnia can feel like torture, but can it be fatal? The answer is yes, but it's an incredibly rare neurodegenerative disease, normally passed down genetically.

By Maria Trimarchi

We may not know how to describe it very well, but we all recognize "old person" smell whenever it happens to grace our nostrils. But while the scent may be ubiquitous, its causes are a little less clear.

By Laurie L. Dove