Ultra Violet rays or UV's cause the skin to burn in the sun.
In the large intestine, or colon, salts and water are absorbed from the liquefied food, leaving a semi-solid residue called feces (stool). ... When the stool enters the rectum, stretching causes the muscles of the lower rectum and anus to relax so that the stool can be eliminated by defecation.
Damages self esteem, increases risk of anxiety, and increases likelihood of risky behaviours.
