Or so it is said.
A study in the US found a link between soaring marijuana use and increased incidence of the disease for the first time.
The link is limited to the aggressive nonseminoma types of testicular cancer which strike earlier than other varieties, affecting men aged between 20 and 35.
At the risk of straying into Ben Goldacre\’s territory, this doesn\’t in fact tell us very much. what we really want to know is what is the risk before and what is the risk after. Total lifetime risk is some one in 250. They specifically say that it is not all types, but just one sub-type which cannabis increases the risk of.So let\’s say one in 500 as the original risk.
Or 0.2%. A 70% increase in risk makes that 0.34%.
Hmm, not exactly the most desperately strong evidence that we need to keep it illegal now, is it?