These can be very personal factors. They are often perfectionist and want to do everything very well. This of course never succeeds and gets frustrated. When conclusions are drawn from these lines of thought in thinking (people only like me when I lose 10 kilos) they end up in a downward spiral. Success is therefore associated with body weight. Anorexia can also occur after puberty, here other things often play a role that are probably not processed properly or that can be processed.