Being overweight or obese during pregnancy can put women at a higher risk for gestational diabetes, which increases the risk of birth complications.

Surgery to remove a child's tonsils or adenoids to treat sleep apnea is a relatively low-risk procedure. But the pain relief offered after the surgery requires careful supervision.

The risks related to drinking during pregnancy are not limited to fetal alcohol syndrome. A baby's exposure to alcohol before birth can also mean poor growth.

While some vaccines can be given once and offer protection for life, others require booster shots and still may wear off over time.

Smoking cigarettes and drinking alcohol are two vices that can take a toll on your health in a variety of ways. More specifically, these habits may worsen certain types of arthritis.

Steroid abuse is always bad, but for teens the damage can be more serious and last longer. Steroids can change the way an adolescent’s brain develops and vital organs function.

Food allergies can show up in many ways. For young children, a dairy allergy may show up as congestion in the ear, nose or throat.

Do laws regarding vending machines and fast food carts in schools make a difference in whether teens gain weight? That's what a group of researchers sought to find out.

Experiencing abuse as a child means more than a higher risk of mental illness. Researchers are learning that abused children are at risk for various long-term physical issues as well.

Insufficient sleep can make it harder for your body to fight illnesses, but it can also make it easier for your body to get sick in the first place.