Pregnancy
Pregnant women are more prone to foot and leg cramps at night. The risk is especially higher during the second and third trimester. Scientists have not found out the exact cause yet. Some possible reasons might include dehydration, extra weight on their feet when the babies grow, as well as nutritional deficiencies, especially in magnesium. Also, pregnancy might affect the use of calcium in the body. This leads to a lower level than usual, which subsequently causes muscle cramps and muscular sensitivity. [8]
