One reason (not to say I've done it myself) is that it makes you feel good.
Be more specific so I can help you
Answer: Eating disorder.
Explanation:
It is a complicated condition that comes up as a results of a number of long standing behavioural issues which could be biological, interpersonal, emotional, psychological, and social. On the long run, these behavioural issues will affect the emotional, physical, and health condition of the person, it will also affect the self esteem, sense of competence and control of the individual.
