From Greatist.com…..
Fasting is nothing new. Our ancestors did it (because they didn’t have constant access to food) before anyone ever muttered the words “skinny jeans,” “thigh gap,” or “cleanse” (or any words at all, for that matter).
Countless religious ceremonies revolve around some form of dietary fast — from the 25-hour Jewish fast of Yom Kippur to the month-long daytime fast of Ramadan in Islam.
