The excitability of muscles and nerve endings are increased when there are low blood calcium and magnesium levels which cause muscle cramping.
The excitability of muscles and nerve endings are increased when there are low blood calcium and magnesium levels which cause muscle cramping.
当血液中钙、镁含量过低时可能刺激到神经末梢和肌肉并使其高度兴奋，从而造成抽筋。