There is nothing to choose from?
Challenge your muscles to work harder or longer than they usually do
Ramon seems the most likely to abuse drugs because of peer pressure. In his situation you can see that his parents are gone often and he likes to throw parties at his house where the people coming are likely to bring drugs and alchohol.
All other situations wouldnt make sense.
Hope this helps (: Pleaselet me know if i should explain more (:
If someone is addicted to salt(which is possible) and go long periods without it their blood pressure will improve because,salt dries things out for example blood water ect..