I would have to search for that, but limiting your total cumulative dose makes sense in light of research showing adverse brain changes in longtime and/or heavy users.
The 6 weeks number is more a rule of thumb. For some it's longer, for others shorter. In the beginning, it may not matter, but if you browse drug forums for a while, you'll see the pattern 'don't do it too often' emerge.
6 times over a 5 year period looks quite safe. I have some friends who have used MDMA more than that and some of them started to have longer 'sad' or 'depressed' periods, sometimes stretching into months. Again, it would be great if there was an authoritative manual for all of this, but I don't think something like that exists.
The 6 weeks number is more a rule of thumb. For some it's longer, for others shorter. In the beginning, it may not matter, but if you browse drug forums for a while, you'll see the pattern 'don't do it too often' emerge.
6 times over a 5 year period looks quite safe. I have some friends who have used MDMA more than that and some of them started to have longer 'sad' or 'depressed' periods, sometimes stretching into months. Again, it would be great if there was an authoritative manual for all of this, but I don't think something like that exists.