Cannabis is globally the most commonly used psychoactive substance under international control. In 2013 an estimated 181.8 million people aged 15-64 years used

Significant changes have taken place in the policy landscape surrounding cannabis legalization, production, and use. During the past 20 years, 25 states and the

The medical use of marijuana is surrounded by a cloud of social, political, and religious controversy, which obscures the facts that should be considered in the

Legalization of marijuana is becoming increasingly prominent in the United States and around the world. While there is some discussion of the relationship betwe

"This book does not take a position on whether expanded legal use of non-medical cannabis should continue. It seeks to provide a consolidated source for the evi