Backache effects almost 80% of adults sometime, it is one of the most common reasons for people to go to the hospital. It is now believed that the main cause of back pain is simple muscle strain. It may appear the backache happened suddenly but the problem may develop over a long period of time. Poor diet and nutrition can be contributing factors. When muscles contract both lactic and pyruvic acid are produced from muscle activity. The presence of the lactic acid causes the feeling of fatigue after strenuous work. If the levels of these acids get high enough then they cause irritation and this leads to pain. This is all made worse by dehydration, not drinking enough water. Backaches may also have a psychological aspect such as a deep seated emotional or stress related problem. Kidney, bladder, female pelvic disorders, and prostate problems can also be causes of back pain.