Night cramps (especially nocturnal leg cramps) can happen to anyone, but some people are more likely to experience them. Those at higher risk include:
- Older adults — Risk increases with age, particularly after about age 50, partly because of muscle loss, reduced flexibility, and changes in nerve function.
- Pregnant people — Leg cramps are common during pregnancy, especially in the later months.
- People who are dehydrated — Low fluid intake or heavy sweating can contribute to muscle cramping.
- People with muscle overuse or strain — Intense exercise, prolonged standing, or unusual physical activity can trigger cramps.
- Those with poor circulation or nerve problems — Conditions affecting blood flow or nerves may increase the likelihood of cramps.
- People with certain medical conditions, including:
- Diabetes (especially with nerve involvement)
- Kidney disease
- Thyroid disorders
- Liver disease
- Peripheral artery disease
- People taking certain medications, such as some diuretics (“water pills”), cholesterol-lowering medicines (statins), and some asthma or blood pressure medications.
- People with mineral or electrolyte imbalances — Low levels of magnesium, potassium, or calcium may play a role in some cases.
- Those who sit or stand in the same position for long periods — Reduced movement can contribute to muscle tightness and cramping.
For occasional night cramps, gentle stretching of the affected muscle, staying hydrated, and regular movement may help. If cramps are frequent, severe, cause swelling or weakness, disrupt sleep often, or are accompanied by numbness or other symptoms, it is worth discussing them with a healthcare professional to look for an underlying cause.
