My friend is a daily marijuana smoker of 7 years, he smoked a half oz a week. His tolerance was very very high, he'd rip 8 or 9 bowls to get a small buzz With no tolerance break, or decrease in smoking marijuana started to effect begun to effect him very very strongly. He woke up, smoked a bowl, felt fine, took a tiny dab, as he has many times, and got higher than he can remember being. That was three weeks ago. From then on he smoke 1 or two hits and is extremely stoned as it was when he had just started smoking. It is not due to potency, it's hard to explain because it so weird, but something is very abnormal, he can't rip a bowl without getting to stoned to do anything except Go to sleep. I did not think marijuana tolerance could disappear like this, as THC is in your fat cells, can someone explain this? I can't find any info anywhere.