Have you ever felt that your arms or legs are shorter than normal? While you might think you have short arms or legs, sufferers from achondroplasia know they have abnormally short arms and legs. Achondroplasia is a disease that affects the length of the bone in the arms and legs and makes them shorter because of the slow formation of bone during development. Achondroplasia is one of the oldest recorded birth defects, having been depicted in ancient Egyptian art. One in every 25,000 people are diagnosed with achondroplasia, and it can affect all races and genders.
It takes about 20 seconds for a red blood cell to circle the whole body.