Who Is Most at Risk of Night Cramps?
Night leg cramps are sudden, painful tightening of the calf, foot, or thigh muscles during sleep or while in bed. They become more common with age, and in many cases there is no single identifiable cause.
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People who may be more likely to experience them include:
Older adults — Risk increases with age, partly because muscles and tendons change and muscle mass declines.
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Pregnant people — Leg cramps, particularly at night, are common during pregnancy and are especially frequent later in pregnancy.
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People who become dehydrated — Fluid loss can contribute to muscle cramping.
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People who overwork or fatigue their leg muscles — Strenuous exercise or prolonged physical activity can increase the likelihood of cramps.
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People who sit for long periods or are physically inactive — Prolonged sitting and poor conditioning can be associated with cramps.
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People taking certain medications — Diuretics (“water pills”) and some medicines used for blood pressure or cholesterol may be associated with leg cramps.
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People with certain medical conditions — Diabetes-related nerve damage, kidney disease, peripheral artery disease, thyroid disorders, and some neurological conditions can be associated with cramps.
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What can help?
Gentle calf stretching before bed, staying adequately hydrated, and regular light activity may reduce the frequency of cramps for some people.
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If cramps regularly disturb your sleep, last more than about 10 minutes, or occur with swelling, numbness, weakness, or persistent pain, it’s worth discussing them with a healthcare professional.
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One important point: don’t automatically assume night cramps mean you are deficient in magnesium or another mineral. Many cases have no clear cause, and supplements aren’t appropriate for everyone.
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