• Herpes is an infection that is caused by a herpes simplex virus (HSV). Oral herpes causes cold sores around the mouth or face. Genital herpes affects the genitals, buttocks or anal area. Some people get sores near the area where the virus has entered the body. They turn into blisters, become itchy and painful, and then heal. The virus can be dangerous in newborn babies or in people with weak immune systems.
  • A number of things can cause excessive hair loss. Hormonal problems may cause hair loss. If your thyroid gland is overactive or underactive, your hair may fall out. Some medicines can cause hair loss. This type of hair loss improves when you stop taking the medicine. Certain infections can cause hair loss. Fungal infections of the scalp can cause hair loss in children.
  • Obesity results from a combination of causes and contributing factors, including individual factors such as behavior and genetics. Behaviors can include dietary patterns, physical activity, inactivity, medication use, and other exposures. Obesity is a serious concern because it is associated with poorer mental health outcomes, reduced quality of life, and the leading causes of death in the U.S. and worldwide, including diabetes, heart disease, stroke, and some types of cancer. Obesity and its associated health problems have a significant economic impact on the U.S. health care system.