Detailed information on allergic reactions to insect bites and stings.

Idiopathic environmental intolerance (IEI) is a set of symptoms caused by contact with some kinds of substances. Read on to learn more about causes, symptoms, triggers, and treatment.

Most allergic reactions are a result of an immune system that responds to a "false alarm."

The most common type of breast infection is lactational mastitis. This happens when a woman is breastfeeding. The nipples become cracked and sore, allowing bacteria from the baby's mouth to enter the ducts and rapidly multiply in the milk.

Detailed information on dental care for infants and children.

Diabetes insipidus occurs when your body doesn’t make enough antidiuretic hormone (ADH). Learn more about this rare disease that causes you to urinate often.

Erectile dysfunction (ED) or impotence means you can’t get an erection. It can also mean you aren't happy with the size or hardness of your erections, or how long your erections last. Read on to learn more about this condition.

Do cell phones interfere with pacemakers? Do ICDs need to be adjusted? Here are answers to these and other questions.

Lack of physical activity is a risk factor for many health problems. Read on to learn more about these risks, and how to get started being active.

It can sometimes be confusing whether to use heat or cold when treating sore muscles or an injury. Here are facts to keep in mind.