If so, buy this book.
"How to Good-bye Depression"
Constricting outlet (anus) 100 times, denting navel to spine 100 times and having a bowel movement 6 times everyday is effective for vigor, anti-aging, good-bye depression, stress reduction, good complexion, beauty treatment, intuition, hair, conjugal affection. Such a butt squeezing exercise enables a 70 year old man to make * * 3 times in succession without drawing out, and enables him to grow 20 years younger. Author: Hiroyuki Nishigaki.
http://www.planetpsych.com/zSelf_Help/goodbye_depression.htm