How long does it take for the down-regulation of the cannabinoid recepters to revert back to normal?
I’m refering to the tolerance you get to using cannabis, I have done some research and couldn’t really find it in black and white. Does anybody know how long it takes? I’m sure that the quality and quantity a person smokes and whether or not they smoke regularly affects the time it takes. So, regarding the question, just assume its a person who smokes high-grade marijuana regularly (Daily or once every two days)

Answer by Derick
It takes a chronic smoker (2-3 times daily) 1.5-2 weeks to return to normal.

Question about using a Volcano Vaporizer: how many minutes is it supposed to take to fill the vapor bag?
I have a Volcano brand vaporizer and I just wanted to make sure it is working properly. It takes about 5 + minutes to fill the vapor bag, is this normal? probably. Thanks.

Answer by Charles B.
There you go:

http://www.bettervapor.com/

http://www.volcanosrus.com/faq.htm

I use a vaporizer to take my medical marijuana. Is it possible its causing headaches?
I recently purchased a vaporizer for taking in my medical marijuana. Is it possible that it is giving me headaches? and if so, how come?

Answer by Djanti
Yes weed can does this generally.
Because your lungs absorb less oxigend and your heart is pumping craploads of blood everywhere.
So it can distress your blood vessals in your head.

Answer by Zman
Just take a little longer between hits,
your brain just needs oxygen.