Most responsible for causing eating disorders

The answer is Emotional trauma

Explanation:

Emotional and psychological trauma can be caused by: One-time events, such as an accident, injury, or a violent attack, especially if it was unexpected or happened in childhood.

depression is an ongoing sadness\lack of motivation. you feel and feel like its never going to get better. you're so sad to the point you think of death.

anxiety is an ongoing feeling of paranoia\ feeling like everyone is watching you and making fun of you. you get nervous easily and feel like the room is spinning.  

yes, they cause death every year. its a long, exhausting battle. only few make it through as sad as it sounds.

explanation:

i have nooo ide tbh