I’m fairly certain it would be cocaine, since it’s much more common and is more of the stimulant.
Short term:
The illnesses will get worse
Long Term:
When a person who has a mental health disorder does not treat the disorder, a number of associated physical issues can occur. Such as depression, anxiety, and bipolar disorder
If you will accept two answers, B and C are correct. If not, choose C because this individual is running long distance over and over again they will have an increase in muscular endurance.
The answer is A, the immune system
The reason that you can tell that it was chemical is because you can see the bubbles forming. This means that it is giving off a gas.