A muscle cramp is a strong, painful contraction or tightening of a muscle that comes on suddenly and lasts from a few seconds to several minutes. A muscle cramp is ...
Nocturnal leg cramps can occur in all ages ... There's no need to lie on the magnet all night, but rather to place your leg over it if you feel a cramp coming on.
Leg cramps can also signal high blood pressure during the night. Some individuals may endure painful muscle contractions in their calves or thighs, which can abruptly wake them from sleep.