Cannabis Culture

In many countries, the use of cannabis has been effectively decriminalized and many younger people see it as no more controversial than alcohol, coffee or tobacco. But what do we really know about it? Why does it make people stoned and does it kill of brain cells? Is it addictive? And is there really a cannabis culture today? Patrick Matthew unravels the complexities of the plant, uncovering in the process much of the chemistry of our minds and emotions, as he meets scientists, connoisseurs, criminals and cultivators on a journey that takes him through 3000 years of history.