Who Is Most at Risk of Night Leg Cramps?
Nighttime leg cramps—sudden, painful muscle contractions that commonly affect the calves or feet during sleep—can happen to anyone. However, certain people are more likely to experience them.
People at higher risk
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Older adults: Night cramps become more common with age, partly because muscles and tendons change and physical activity may decrease.
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People who stand or walk for long periods: Prolonged muscle use can contribute to fatigue and cramping.
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People who are physically inactive: Reduced conditioning can make muscles more susceptible to spasms.
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Pregnant people: Changes in circulation, body weight, and muscle demands can make leg cramps more common, particularly later in pregnancy.
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People taking certain medications: Some medicines, including certain diuretics and medications used to treat cholesterol or blood pressure problems, can sometimes be associated with muscle cramps.
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People with certain medical conditions: Circulation problems, nerve disorders, kidney disease, diabetes, and other conditions may increase the likelihood of cramping.
Does a cramp mean you lack potassium or magnesium?
Not necessarily. Although electrolyte abnormalities can cause muscle cramps, most nighttime leg cramps aren’t simply a sign that you need more magnesium, potassium, or another supplement. Taking supplements without knowing the cause may not help and can sometimes be harmful.
Simple measures such as gently stretching the affected muscle, staying adequately hydrated, and maintaining regular physical activity may help some people.
If cramps are frequent, severe, newly occurring, associated with swelling or weakness, or regularly disturb your sleep, discuss them with a healthcare professional. A medication review and evaluation for underlying conditions may be appropriate.
