Karen Rowan

People living in apartment buildings may breathe in tobacco smoke even if they don't know it, a new study suggests.

Not getting enough sleep isn't good for the swimmers, a new study from Denmark says.

The news that a powerful tornado in Oklahoma struck schools may cause children to develop anxiety.

Babies sleeping in bed with their parents have an increased risk of sudden infant death syndrome, a new study finds.

Researchers found signs of fecal bacteria in more than half of the pools they tested.

Drugs that block estrogen may prevent breast cancer in some women, according to a new review of studies.

The 22-year-old woman is now six weeks pregnant, according to a report.

The plastic surgery procedure that saw the biggest uptick between the years 2000 and 2012 was the upper arm lift, according to a new report.

Children at a high risk of developing autism were more likely to have certain abnormal structures within the placenta, a new study says.

A study of people who lived in the "stroke belt" during their teens may shed light on the role these years play in the risk of stroke later in life.

People who have had common skin cancers may be at an increased risk of getting cancer again in their life, according to a new study.

Despite warning labels, parents are giving cough and cold medicines to children under age 4, a new poll finds.

While public pools and communal showers may seem like germy places, when it comes to warts, kids are more likely to get them at home, a new study says.

Women who gave birth during their teen years may be more likely to be obese later in life, a new study says.

Negative thinking can be contagious, especially when we’re going through a big life change, a new study says.

Family members of people infected with H7N9 may have become infected via person-to-person transmission.

Climate change may be one reason for the significant increase.

In talking with children about the bombing in Boston, parents should answer kids' questions, but not elaborate, experts say.

The new bird flu virus evolved from three other influenza viruses, researchers say.

Nearly 13 percent of adults ages 18 to 64 have skipped doses of their medications or delayed filling prescriptions because of the cost, according to a new report.

Cities with lower average incomes have obesity rates, according to a new poll.

Exercise that involves moving your body vertically might suppress hunger more than other types of exercise, a new study suggests.

A cataract shaped like a star developed in a man's eye after he was punched. It's common for cataracts to form after a blow to the eye, but most aren't so pretty, experts say.

Only one-third of parents said they follow their child's doctor's advice all the time.