Health Topics A-Z

Restless legs syndrome is a neurological condition that causes an irresistible urge to move the legs, often accompanied by uncomfortable sensations. 

Retinal detachment is a serious eye emergency that can cause permanent vision loss if not treated quickly.

Rheumatoid arthritis is a long-lasting autoimmune disease that mainly affects the joints. With current treatments, many people with rheumatoid arthritis can lead active, productive lives.

Rosacea is a long-term inflammatory skin condition that causes reddened skin and a rash, usually on the nose and cheeks. It may also cause eye problems. 

Sarcoidosis is a complex inflammatory disease in which groups of immune cells form small clusters called granulomas in various organs of the body.

Schizophrenia affects how a person thinks, feels, and behaves. People with schizophrenia may seem like they have lost touch with reality, which can be distressing for them and for their family and friends.

Scleroderma is an autoimmune disease. It causes inflammation and thickening in the skin and other areas of the body and organs.

Sensors are tools designed to detect and respond to specific inputs from the physical environment. This information can be helpful in biomedical research and medical care.

Sexually transmitted infections, or STIs, are infections caused by bacteria, viruses, or parasites that pass from person to person through sexual contact involving the penis, vagina, mouth, or anus.

Shingles is a disease that triggers a painful skin rash. It is caused by the varicella-zoster virus, the same virus that causes chickenpox.