For those brand new to IF, this is a good article. For those who are familiar with IF, eating during a period of 6 hours during the day is hardly extreme. The advice to eat when hungry is ok, but in the beginning of a new WOE, it's very hard for people coming off a SAD to understand the difference between habitual cravings and the actual sensation of hunger. It takes a bit of time and discipline to get to the point where one re-sensitizes to real hunger signals.