When you think of holidays, you probably don't think of food deprivation. But, plenty of cultures have integrated fasting into their traditional observances, for millenia. This month, Muslims around the world are celebrating Ramadan, a holiday which emphasizes fasting during daylight hours. Since the holiday essentially mandates time-restricted feeding, with food only being consumed before sunrise and after sunset, Ramadan has piqued the curiosity of the research world. What's more, we also ...