The nerves in the face or head are often in a state of tension, which leads to excessive nerve pressure. If you don't relax, you will have nervous convulsions. It is suggested that you can go to a beauty salon for a facial massage or a head massage and learn to relax yourself. Eat more foods containing more calcium and less empty vegetables, because eating too much will produce convulsions!

The scientific name of cramp is muscle spasm, which is the spontaneous tense contraction of muscle. Muscle spasms that occur in calves and toes are the most common, and the pain is unbearable when they occur, especially cramps in the middle of the night, which often make people unable to relieve the pain for a long time after waking up and affect sleep.

Common causes of leg and leg cramps are as follows:

(1) Cold stimulation of external environment, such as low room temperature in winter nights, too thin quilt when sleeping, or exposed legs and feet.

② Fatigue, sleep, lack of rest or excessive rest lead to the accumulation of local acid metabolites, which can all cause muscle spasm. Too long walking or exercise time, excessive fatigue of lower limbs or insufficient rest and sleep will lead to lactic acid accumulation. Sleep rest time is too long, blood circulation slows down and carbon dioxide accumulates.

③ Decreased estrogen and osteoporosis in elderly women will lead to decreased blood calcium level, increased muscle stress and frequent spasms.

4 Poor sleep posture, such as lying on your back for a long time, making the quilt press on the foot surface, or prone for a long time, making the foot surface close to the bed, forcing some muscles of the calf to be in an absolute relaxed state for a long time, resulting in "passive contracture" of the muscles.