Marfan syndrome is a genetic disorder that affects the body's connective tissue – the tissue that makes up our tendons, ligaments, joints, and muscles, including the heart, blood vessels, and eyes.
People with this condition are generally very tall and slim with long arms and fingers. It's rare – roughly 1 in 3,000 to 5,000 people have it. While you may be born with Marfan syndrome, you may not know until later in life. There is no cure for this disorder.