How to choose a fitness ball

Migraine Headaches

Video animation showing what causes a migraine and what happens to the blood vessels inside the brain when a migraine occurs.

Repatha: Uses, How It Works, and Common Side Effects

Repatha is a medicine used to help reduce levels of bad cholesterol (low-density lipoprotein, or LDL) circulating in your blood. It is a type of human monoclonal antibody.

• Repatha

Gemtesa: Uses, How It Works, and Common Side Effects

Gemtesa tablets are used to treat the symptoms of overactive bladder in adults, to help to improve urinary frequency and urgency. It also helps with urinary incontinence which is when you have a strong need to urinate with leaking or wetting accidents.

• Gemtesa

HSG test for female infertility

Video animation shows the HSG test — an X-ray study to identify causes of female infertility.

Biceps curl with barbell

The biceps curl builds strength in the upper arm. See how it's done.