Night cramps (especially leg cramps that happen during sleep) are common and can happen to anyone, but some people are more likely to experience them.
People at higher risk include:
- Older adults
- Muscle strength and flexibility can decrease with age, making cramps more common.
- People who are dehydrated
- Not getting enough fluids or losing fluids through sweating can contribute to muscle cramps.
- People who are physically inactive
- Long periods of sitting or reduced movement can affect muscle conditioning.
- People who overwork their muscles
- Intense exercise, prolonged standing, or a sudden increase in activity can trigger cramps.
- Pregnant people
- Leg cramps are common during pregnancy, especially later in pregnancy.
- People with certain health conditions
- Conditions affecting nerves, muscles, circulation, or metabolism can increase risk. Examples include diabetes mellitus and some kidney, thyroid, or vascular disorders.
- People taking certain medications
- Some medicines, including certain diuretics (“water pills”) and other drugs that affect fluid or mineral balance, may contribute to cramps.
Ways that may help prevent night cramps
- Stretch calf and leg muscles gently before bed.
- Stay hydrated.
- Keep active with regular, moderate exercise.
- Avoid sudden increases in exercise intensity.
- Wear comfortable, supportive footwear during the day.
Consider medical advice if:
- Cramps are frequent, severe, or getting worse.
- They cause weakness, numbness, or difficulty walking.
- One leg is swollen, red, or painful.
- Cramps started after a new medication.
Occasional night cramps are common, but frequent or unusual cramps are worth discussing with a healthcare professional.
