Waking up in the dead of night with a vise-like grip in your calf or foot is a special kind of agony. It's abrupt, intense, and can leave your muscle tender for days. If this is a regular occurrence for you, it's more than just a nuisance—it's your body sounding an alarm.
Here's what you need to understand about night leg cramps—and what to do about them.
First, What's Actually Happening?
A muscle cramp is a sudden, involuntary contraction of one or more muscles. During a cramp, the muscle fibers contract and won't relax. It can last from a few seconds to several agonizing minutes.
Night leg cramps (also called nocturnal leg cramps) specifically occur—you guessed it—at night, often jolting you from sleep. They most commonly affect the:
Calves (most common)
Feet (especially the arches)
Thighs (less common)
The Most Common Causes
1. Electrolyte Imbalance (The Usual Suspect)
