I’m pretty sure they included more than one independent variable.
It means they are healthy if they nose it's wet it means he/she is sick
Answer:
Cocaine can speed up heart rate and cause the heart to lose its natural rhythm. In rare cases, this can lead to a heart attack.
Cocaine constricts blood vessels, which forces the heart to work harder to pump blood.
Regularly snorting cocaine can lead to loss of sense of smell, nosebleeds, and problems with swallowing. The overall irritation can lead to a chronically inflamed, runny nose
I hope I helped :3
Explanation: