Children without a younger brother or sister by the time they reach first grade are three times more likely to be obese, new research suggests.
Women who take insulin appear more likely to have dense breasts, a known risk factor for breast cancer. Learn more.
Pregnancy makes the cardiovascular system work harder, but breastfeeding may help restore a woman’s physiological systems to their pre-pregnancy state. Learn more.
The news isn’t good for everyone, however. An expert explains.
Smoking isn’t the only risk factor for America’s deadliest cancer, a new study finds.
A new study finds that male friendships help when dealing with stress.
Improperly fitted helmets can lead to more severe and longer-lasting concussion symptoms, according to a new study .
