You’re fast asleep when a sudden, knife-like pain in your leg jars you out of dreamland. It’s a charley horse – sharp, relentless, and completely unexpected. But why do night cramps strike in the dead ...

Medically reviewed by Christopher Lee, MD Key Takeaways Sitting or standing awkwardly for a long time can cause temporary numbness in your legs.Recurrent numbness can be a sign of a serious condition ...