What Are Nighttime Leg Cramps?
Nighttime leg cramps are sudden, involuntary muscle contractions that happen while you’re resting or sleeping. They are different from restless leg syndrome (RLS), which causes an urge to move the legs but not intense muscle tightening.
Cramps usually:
Occur in the calf muscles
Happen during sleep or while lying down
Cause sharp, tightening pain
Leave temporary muscle stiffness afterward
Common Causes of Nighttime Leg Cramps
1. Dehydration
Not drinking enough water during the day can lead to electrolyte imbalance. Muscles rely on proper hydration and minerals like sodium, potassium, calcium, and magnesium to function correctly.
2. Mineral Deficiencies
Low levels of:
Magnesium
Potassium