Does a lack of sleep cause a lack of energy?

Answer:
Absolutely Your body uses sleep as a rebuilding time for muscles. Your muscles use energy most efficiently. If they never have time to recover then they cannot work properly. Therefore your energy can be depleted. However, lack of energy can be a sign of more serious issues such as anemia or thyroid problems. If this is an on going problem you should definitely consult your physician.
First answer by Krmoon. Last edit by Krmoon. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 3 [recommend question].