Muscle Fatigue
If you overexert the feet muscles during the day, foot cramps might occur at night as a result. This is especially true in those people who do a lot of strenuous exercises or work in tasks that require walking or standing for an extended period of time. Muscle fibers basically relax and contract to create movements. Nevertheless, repeated movements would result in muscle fatigue, which affects the nerve impulses controlling muscle movements. Also, fatigue can deplete oxygen in the body and make it easier for waste products to accumulate. That’s why you might experience muscle cramps and spasms. [3]
