system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do people who are addicted to drugs like meth, cocaine etc have changed facial features?
gpt
Not all addicts do...you’d be suprised how well some addicts can blend into society, looking at some you’d never know; but some do if they don’t have good eating / sleeping habits & are malnourished . Also years of drug use will usually make you lose your teeth making your face look sunken in.