I remember something on this subject that I either read or saw on tv. One of the main reasons that they determined this was because of old samples that they used for a comparison from the 60's/70's......it was stored wrong and lost all it's bang.

Have a good one!:thumbsup:
Psycho4Bud Reviewed by Psycho4Bud on . The Man says, "Weed is stronger now," as if it's a bad thing As I grew up I learned that weed today is much stronger now than it was 30 years ago. I've always been told this is a reason to stay away from it, but I was never told why. For a while I have been advocating that weed today is better for you because THC doesn't cause tissue damage, even in high concentrations, and so the user has to smoke less to get high therefore inhaling far less carcinogens than our parents did. Today the Daily Factiod reads, "Stronger the cannabis (the more THC-9), the Rating: 5