Multiple sclerosis (MS) is most commonly diagnosed between ages 20 and 40, but can be seen at any age. Affecting women more than men, the disorder is caused by inflammation that deteriorates the myelin sheath, the protective covering that surrounds nerve cells. When the myelin is damaged, nerve signals slow down or
Mumps, caused by the mumps virus, typically starts with a few days of fever, headache, muscle aches, tiredness, and loss of appetite, and is followed by swelling of salivary glands. There is no specific treatment for mumps. Mumps can cause inflammation of the testicles called orchitis. At highest risk are
