All sorts of different studies are pointing to how lack of sleep damages brain cells. One recent study found that in mice 25% of certain brain cells died as a result of a prolonged lack of sleep. Other studies have found lower integrity white matter in the brain, possibly as a result of lack of sleep.
1 Food poisoning; food poisoning can also cause pain in the lower left abdomen. 2  Moreover, it can cause nausea, vomiting or diarrhea and fever. 3  Symptoms usually occur for 24-48 hours. 4  For some cases, need to be hospitalized.
Possible Causes for Lower Left Side Abdominal Pain. 1  1. Diverticulitis. 2  2. Constipation. 3  4. Ectopic Pregnancy. 4  5. Crohnâs Disease. 5  6. Irritable Bowel Syndrome. 6  7. Ovarian Cysts. 7  8. Abdominal Hernias. 8  9. Endometriosis.