Perhaps this is the answer
After smoking marijauna, as the body tries to detoxify itself, the blood brain barrier is dilated. This effect may also rxplain why marijuana is effective for glaucoma.
The reason for the "munchies" is that the sugar is used to detoxify as well, which may explain some of marijuana's benefit as an anti-nausea medication.
These explain some of smoked marijuana's usefulness. As this whole topic simply makes my blood boil, and I have to watch my blood pressure, I simply want to close this message with my wish that G*d damn these moral cowards to the same fates which they have placed on many of their constituents.
ep