People who are more likely to experience night cramps (nocturnal muscle cramps) include:
- Older adults — muscle loss, changes in nerves, and circulation changes with age can increase risk.
- Pregnant people — especially in later pregnancy, due to changes in body weight, circulation, and minerals.
- Athletes or people who exercise intensely — overworked or fatigued muscles may cramp, especially after strenuous activity.
- People who are dehydrated — low fluid intake or heavy sweating can contribute.
- Those with mineral imbalances — low levels of certain electrolytes (such as magnesium, potassium, or calcium) may play a role.
- People who stand or sit for long periods — prolonged muscle inactivity or strain can increase discomfort.
- People taking certain medications — some medicines, including certain diuretics or cholesterol-lowering drugs, can be associated with cramps.
- People with certain medical conditions — such as nerve disorders, circulation problems, kidney disease, diabetes, or thyroid disorders.
Most nighttime cramps are harmless and brief, but frequent, severe, or new cramps—especially with weakness, numbness, swelling, or changes in walking—should be discussed with a healthcare professional.
