Multiple sclerosis (MS) is an unpredictable, chronic neurological disease of the central nervous system that disrupts the flow of information within the brain, spinal cord, and optic nerves. The exact cause of MS is unknown, but it is thought to be related to a combination of genetic and environmental factors. MS affects more than 2.8 million people worldwide and is most commonly diagnosed between the ages of 20 and 50. Women are three times more likely to develop MS than men.

MS symptoms vary widely from person to person and can include fatigue, numbness or tingling, muscle weakness, vision problems, difficulty with balance and coordination, cognitive impairment, and depression. The course of the disease can be unpredictable, with periods of relapse and remission, or a gradual worsening of symptoms.

There is currently no cure for MS, but there are a variety of treatments available to help manage the symptoms and slow the progression of the disease. These include medications, physical therapy, occupational therapy, and lifestyle changes. Research into new treatments for MS is ongoing, and there is hope that a cure may be found in the future.