Leg cramps can also be a symptom of the nerve disorder multiple sclerosis (MS). Some people with MS have spasticity, which can include involuntary muscle spasms and twitches or leg cramps.

Kicking off our countdown at number three is the involuntary eyelid twitch. It's caused by spasms ... It's the temporary compression of nerves that's the actual culprit. The signals to the spine ...