Anorexia nervosa is more like nit picking at food, not eating. While bulimia is eating and then making yourself throw up which can cause permanent damage. Binge eating disorder is eating an extra amount of food used for coping or you do it because of a mental illness♀️
Voice volume is the right answer i think
The main thing would be to not smoke. But also if you are around someone who smokes, try to limit interaction with them while they are smoking. second hand smoke can be just as deadly. Also doing things like using smoke free facilities, like smoke free hotel rooms and restaurants.