A migraine is a headache that can cause severe throbbing pain or a pulsing sensation, usually on one side of the head. It's often...

Hair loss (alopecia) can affect just your scalp or your entire body, and it can be temporary or permanent. It can be the result of...

A hot flash is the sudden feeling of warmth in the upper body, which is usually most intense over the face, neck and chest. Your skin...

Atopic dermatitis (eczema) is a condition that causes dry, itchy and inflamed skin. It's common in young children but can occur at any...

Hodgkin's lymphoma is a type of cancer that affects the lymphatic system, which is part of the body's germ-fighting immune system. In...

Coronaviruses are a family of viruses that can cause illnesses such as the common cold, severe acute respiratory syndrome (SARS) and...

Anemia is a condition in which you lack enough healthy red blood cells to carry adequate oxygen to your body's tissues. Having anemia,...

Asthma is a condition in which your airways narrow and swell and may produce extra mucus. This can make breathing difficult and trigger...

Type 1 diabetes, once known as juvenile diabetes or insulin-dependent diabetes, is a chronic condition. In this condition, the pancreas...

High blood pressure is a common condition that affects the body's arteries. It's also called hypertension. If you have high blood...

Obesity is a complex disease involving an excessive amount of body fat. Obesity isn't just a cosmetic concern. It's a medical problem...