Which of the following is characteristics of bulimia

Purging, binging (which means eating a lot of food and then making yourself throw it up, you could also be embarrassed because of how much you have eaten and don’t want anybody to know )

Hair follicles, blood, etc.

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.