It’s a sensation many of us are familiar with: you lie in bed and suddenly your hands fall asleep. They feel numb, and an uncomfortable tingling sensation appears.
This phenomenon—when parts of the body seem to “fall asleep”—is known as paresthesia. But what exactly causes it? Why does it happen, and what can you do to prevent it?
In this article, we explore the common causes and explain what lies behind this unpleasant sensation.
