I've read several times that it is best to avoid cigarettes and caffeine during the comedown period. Do stimulants cause damage during the comedown, or do they simply slow the comedown? I'm curious about the scientific reason behind why these substances are harmful during this period. I am in the middle of a comedown and I have a nicotine addiction. I just found out today that I need to avoid cigarettes. I don't have a problem with this, but I've smoked a pack in the past week so I'm wondering if I did any damage