Very false. Thousands of people all around the world that get in some kind accident or have medical issues ans or have a surgery for any reason. And need medications to recover, and end up addicted even after the treatment is over. And depend on the pills even after all the side effects of pain or whatever it may be is gone. Thousands on thousands of people are effected by this every year its a big issue.
The answers are, acid rain, respiratory distress, and global warming.
I'm not sure if you have choices or not but many abusers use substances to numb feelings in order to avoid negative feelings.
Numb
Cardio because it raises your heart beat and keeps the heart beat for a period of time.
