Remy Melina

When toddlers witness their parents stressing out, the experience literally "gets under their skin," making changes to their DNA that are still present years later, when the kids are teenagers.

A "light lunch" regimen of eating portion-controlled lunches could result in losing at least 25 pounds over the course of a year — and won't leave you feeling deprived, a new study shows.

The aggressive courtship strategies of sexist men are most successful on women with a preference for "no strings attached" sex and negative attitudes toward other women.

After the hitting Bahamas, Hurricane Irene is making her way toward the U.S. Northeast, forecasters predict. Here are the latest images of the hurricane.

Young children are able to understand complex grammar at a younger age than previously believed, a new study shows.

From the small brown hare to the mighty lion, we've rounded up the top 10 fastest beasts on land.

How much you disagree and fight with your spouse is likely to remain the same throughout your marriage, a new study shows.

Check out these blondes, from pale pythons to white hedgehogs with pink eyes.

Childhood obesity and drug abuse tied for first place on the 2011 Children's Health issues report, with sexting making the list for the first time.

Older female cheetahs have viable eggs, which could be transferred to younger cats.

We've rounded up the most impressive birds of prey photos, including vultures, hawks and eagles.

To others, narcissists seem like strong, competent leaders, but a new study shows that their preoccupation with themselves actually thwarts teamwork.

We've gathered haunting images of shipwrecks from the depths of seas and oceans across the globe.

Getting too chummy with your boyfriend's or husband's friends could take a toll on your love life, a new study shows.

Those who smoke soon after waking up in the morning may have a higher risk of developing lung, head and neck cancers, two new studies show.

Photos of various lion activities, including images showing them killing food, caring for young, sleeping, staying in groups & all their different behaviors that reveal their lifestyle.

Kids get half of their daily calorie needs from lunches purchased at fast-food restaurants, a new study shows.

A treatment called positive activity interventions (PAIs), such as counting one's blessings and practicing optimism, works as a successful and safe approach to managing depression.

We've rounded up images of the world's most adorable insects.

Deer ticks are spreading a new, yet-unnamed strain of the ehrlichiosis bacteria to humans in parts of the United States, researchers have found.

A new tool allows users to utilize their tagged digital photos to create short movies that rapidly show how they've aged or gradually change their expression.

Smokers who take vitamins allow themselves to smoke more, incorrectly assuming that the pills will cancel out the harmful effects of cigarettes.

"Mirroring," or consciously or subconsciously copycatting someone's body language, can come at a cost, a new study shows.

From sleepy polar bear cubs to winking red pandas, we've compiled a gallery of the most remarkable — and cutest — bear photographs.