Why might some do tobacco

Tobacco is often used because it is a supposed "stress reliever", it has many addicting chemicals that could damage ones lungs and other parts of their body. It is also often peer pressure, that is how many teens get roped into an addiction to vaping and smoking.  

eating disorders is a fatal illnesses that cause severe disturbances to a person's eating behaviors. obsessions with food, body weight, and shape may also signal an eating disorder. common eating disorders include anorexia nervosa, bulimia nervosa, and binge-eating disorder.