This is an article I just read in Huffington Post. Very interesting. I have seen others here associate junk food and eliminating it helps them reboot. Maybe this article explains that link.
http://www.huffingtonpost.com/gregory-ciotti/supernormal-stimuli-this-_b_5584972.html?utm_hp_ref=porn
http://www.huffingtonpost.com/gregory-ciotti/supernormal-stimuli-this-_b_5584972.html?utm_hp_ref=porn