The answer to your question is kinesiology
Answer:
The guy who cares about his health will be stronger, healther, more likely to be obese etc. However the guy who doesn't care about his health will more likely be obese, weaker, and not as healthy.
Explanation:
Although it is said that marijuana is not good for the body, it is still harmful to the lungs and by smoking it you could potentially put yourself or others in danger. Marijuana dulls the senses almost like alcohol.