Answer:
Although not fully understood, low back pain problems are usually linked to two areas: 1) lifestyle, which includes stress, lack of exercise and poor posture, and 2) physical injury or disease. Stress can be a precursor to low back pain by upsetting your nervous system, causing your muscles to go into spasm.
Explanation:
Skin, Voiding, Sneezing, Coughing, Vomiting, Stomach Juices, etc. So many things! :) (even your saliva)
Fad diets are claimed to the loss of fat you lose but most times it's water weight you are losing.