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.
Common causes of lower abdominal pain include appendicitis, irritable bowel syndrome, ovarian cyst, diverticulitis, constipation, cystitis, period pain, endometriosis, pelvic inflammatory disease, bowel obstruction, ectopic pregnancy, miscarriage and inflammatory bowel diseases. It could cause pain on the right or left lower abdomen, at about 2 weeks or there about after their last menstrual period, for those who have a 28 days regular menstrual interval. 2  The pain could come on suddenly, lasting between a few minutes up to 3 days. 3  The pain could be sharp or dull, moderate but rarely severe.