I always read about this 'starvation mode' we go into if we starve ourselves or if our caloric deficit is too high. How exactly does this metabolic slow down occur? If you go 6 hours hungry say during the day would you go into this mode, or does it take a few days of extreme caloric deficit or even a few weeks? I've always wondered about it because when I'm dieting/cutting I don't want to go into it if I could be eating MORE and keeping my metabolism up for better gains. So any detail/ non-technical sources would be great.