Nov 12, 2024 · Down syndrome is a genetic condition caused when an unusual cell division results in an extra full or partial copy of chromosome 21. This extra genetic material causes …

Aug 2, 2022 · Sjogren's (SHOW-grins) syndrome is a disorder of your immune system identified by its two most common symptoms — dry eyes and a dry mouth. The condition often …

Aug 25, 2022 · Ehlers-Danlos syndrome is a group of inherited disorders that affect your connective tissues — primarily your skin, joints and blood vessel walls. Connective tissue is a …

Nov 8, 2025 · Get care from experts in stiff person syndrome, also called SPS, a disorder that causes worsening muscle rigidity and spasms over time.

Overview Bardet-Biedl (BAR-day, BEE-dul) syndrome, also called BBS, is a rare condition caused by changes in genes. BBS can affect almost any part of the body. Starting in early childhood, …

Jun 7, 2024 · Guillain-Barre syndrome is a serious condition that requires immediate hospitalization because it can worsen quickly. The sooner treatment is started, the better the …

Apr 17, 2025 · Nearly 1 in 162 children in the U.S. have Tourette syndrome, according to the Centers for Disease Control. While genetic studies have identified some risk genes, the …

Dec 13, 2024 · Also known as Willis-Ekbom disease, restless legs syndrome usually occurs in the evening or at night when a person has been sitting or lying down. People describe it as …

Oct 11, 2024 · Formerly referred to as stiff man syndrome, SPS is a progressive condition that impacts the nervous system — the network the brain and spinal cord use to send messages …

Jun 7, 2023 · Too much cortisol can cause some of the main symptoms of Cushing syndrome — a fatty hump between the shoulders, a rounded face, and pink or purple stretch marks on the …