Earlier quoted context omitted.
All drugs work this way: alcohol, cigarettes, weed, facebook, coffee, etc. The problem is confining to a narrow usage pattern. It is just impossible for 99.99% of people over 30 years of their lives. All will make mistakes at one point.
I'm not so sure. Many people get drunk every Friday or Saturday night for decades without developing alcoholism or ill effects on the rest of their life.
I think the comment i was replying to stated that a little relaxation in the middle of a stressful hour can really help you focus more.