Lack of body fat / Excessive body fat
High levels enzymes / Low levels of enzymes
Low metabolic rate / High metabolic rate (elimates drugs quicker)
Race (types and levels of enzymes)
Bad health / good health (livers for alcohol)
2. Five environmental factors that might make a person more susceptible to addiction
Mental abuse
Peer pressure
Physical abuse
Anger
Bullied
I don't think there is too much similarities between my hereditary list and environmental list. The body fat could be caused by genetics of the family, but it could also be caused by a environmental factor such as lack of money that makes it difficult to buy healthly food and causes them to be overweight.