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.
Pain on left side of the abdomen can be triggered by a number of reasons. Symptoms are more common in women and the elderly due to ailments that are specific to these categories of people. Some of the common reasons that cause pain in this region are the left ovarian diseases or problems with left fallopian tubes. Crohnâs disease, irritable bowel syndrome, left ectopic pregnancy, diverticulitis, and left ulcerative colitis are the other more common causes of the left side abdominal pain.