If your morning routine occasionally includes waking up to a limb that feels less like a part of your body and more like a bag of static, you are far from alone. We have all been there—staring at a hand or arm that has seemingly decided to “clock out” for the night, waiting that agonizing minute for the spark of life to return to our fingertips.
But what is the science behind this phantom flicker? While colloquially dismissed as “pins and needles,” this phenomenon—which manifests as numbness, prickling…
