eli5: why do muscles sometimes cramp while stretching first thing in the morning?
In: 30
What others have said is certainly correct, but here is one additional possibility to keep in mind. Lumbar spinal stenosis (basically a vertebral disc pinching a nerve root) can contribute to nocturnal cramping that is not related to stretching or electrolyte imbalance. This is something to consider only if you have a history of lower back injury and it would need to be assessed by your physician.
Latest Answers