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.
Associated blood vessel conditions, which can result in lower left abdominal pain, include aneurysms in the aorta, atherosclerosis, hereditary angioedema, and Henoch-Schonlein purpura. Skin diseases: Skin diseases, too, can cause lower left abdomen pain. Examples include herpes zoster (shingles) and dermatitis.