(BBC News) Researchers looking at the effects of cannabis on bones have found its impact varies dramatically with age.
The study found that while the drug may reduce bone strength in the young, it could protect against osteoporosis, a weakening of the bones, in later life.
The results were uncovered by a team at the University of Edinburgh who compared the drug’s effects on mice.
Osteoporosis affects up to 30% of women and about 12% of men at some point in their lives.
The group found that cannabis can activate a molecule found naturally in the body that is key to the development of osteoporosis.
When the type 1 cannabinoid receptor (CB1) comes into contact with cannabis, it has an impact on bone regeneration.
Stuart Ralston, the Arthritis Research Campaign Professor of Rheumatology at the University of Edinburgh, who led the study, said: “This is an exciting step forward, but we must recognise that these are early results and more tests are needed on the effects of cannabis in humans to determine how the effects differ with age in people.”
How many ads have you seen on TV for pharmaceuticals that are meant to help older women stave off osteoporosis? Forget the Boniva, try some Sativa! I’ve always been a big proponent of older ladies smoking weed; it’s just nice to finally have some science to back me up. 
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[...] Marijuana use may help prevent osteoporosis in older people [...]