Cannabis has long been used as a medicine in Asian, African and South American countries. The first evidence of the medicinal use of cannabis is in an herbal published during the reign of the Chinese Emperor Chen Nung 5000 years ago. It was recommended for malaria, constipation, rheumatic pains, ‘absentmindedness’ and ‘female disorders’. I’m neither a doctor nor female, but I’ve lived with both and can confirm with anecdotal evidence that cannabis can be used to treat ‘female disorders’, so Chen Nung was definitely onto something 5000 years ago.   According to “History of Cannabis as a Medicine” by Lester Grinspoon, M.D., in India...