Multiple sclerosis (MS) involves an autoimmune response, in which a person's immune system attacks the myelin sheaths that coat and insulate nerves.

Globally, this degenerative condition affects an estimated 2.5 million people.

Symptoms include bladder dysfunction, pain, and spasticity, wherein muscles are stiff and tight, making movement and speech more difficult.

To date, there is no cure for MS. Current treatments focus on relieving symptoms and reducing the risk of relapse.

Researchers have studied cannabinoids, a class of drugs that act on cannabinoid receptors in the body, for their potential use in MS.

Because cannabinoid receptors are involved in the immune responses, some believe that they could help reduce the autoimmune attack that MS causes.

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