http://myscienceacademy.org/2012/12/30/the-importance-of-drinking-rather-than-smoking-cannabis/

Juicing cannabis leaves preserves the extremely valuable medical properties to marijuana WITHOUT the HIGH. It is reported to lower blood pressure by 20 points for those who take blood pressure medications. Heat destroys much of the medical value, so smoking does not have the same medical effects.

http://www.youtube.com/watch?v=R2jI6FN7DOc