yeah i can testify to this i was going hard for the first 8 weeks of school in the morning at least 8 bong loads between me and 1 friend so like 20 rips outta the bong every morning and then sometimes going to a buddies house and smoking a jay before school and then after school smoking a bowl...for about 8 weeks and then i took about a week and a half or 2 week break and man wow....was it amazing lol