What is one of the causes that of teen drinking ?

Some teens drink because they are going through something in their lives and they don't want to face it so they hide behind a bottle.

Peer pressure would be your answer

Protein vetables fruit

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)