Hyperchylomicronemia, familial, is a rare genetic disorder that causes people to have high levels of chylomicrons in their blood. Chylomicrons are fat molecules that are produced when you digest food. They're supposed to be broken down and used for energy, but people with hyperchylomicronemia can't break them down properly. 1. People with hyperchylomicronemia can't digest fat as well as healthy people do—tha  Read More

Megalocornea-mental retardation syndrome or the MMR syndrome is a rare genetic disorder that affects the shape of the cornea and the way a child's brain develops. People who have this disorder are born with eyes that are larger than normal, which can cause vision problems. In addition, this condition causes mental disabilities that range from mild to severe. The cornea is the clear, outermost layer of the eye. It  Read More

Problem sleepiness occurs when sleepiness during the day interferes with work or social functioning. Symptoms of problem sleepiness may include difficulty concentrating, falling asleep while driving, or problems with emotional control. There are a number of causes of problem sleepiness, including sleep disorders; other medical conditions; certain medications; substances like drugs, alcohol, or caffeine; or an altered s  Read More

WAGR syndrome is a disorder that affects many body systems and is named for its main features: Wilms tumor, aniridia, genitourinary anomalies, and intellectual disability People with WAGR syndrome have a 45 to 60 percent chance of developing Wilms tumor, a rare form of kidney cancer. This type of cancer is most often diagnosed in children but is sometimes seen in adults. 1. Most people with WAGR syndrome hav  Read More