Question

A muscle around the waistline twitches involuntarily without any discomfort, resembling the sensation of a phone vibration. The face has become thinner, and this has been ongoing for several months.

Answer

Muscle cramps typically refer to involuntary and rigid contractions of the muscles. This condition is common during prolonged exercise in elderly individuals, especially in the gastrocnemius muscle of the lower leg and the flexor muscles of the feet. When muscle cramps occur, it is important not to apply excessive force but rather to slowly stretch the cramped muscle in the opposite direction to ease the symptoms.