Rare Conditions

Some diseases are incredibly rare, but can also be deadly or severely impact quality of life. They can also be traced to lifestyle, with some of them occurring outside the U.S. With that being said, here are nine of the rarest diseases worldwide.

Experiencing muscle tightness after an intense workout? It happens! Physiotherapist, Eric Leckie, walks us through the signs, symptoms, causes, and treatment options for muscle tightness.