A substantial survey of the up to date medical research on the harmful effects of cannabis has recently been published. Key points are:

-Cannabis use causes acute heart and cardiovascular problems including heart attacks, angina, stroke, artery hardening, blood clots and reduced oxygen levels in blood.

-The immune system is suppressed causing increased risk of infection and tumors, also reduced antibody production and blood cell count.

-Cannabis use brings on depression, aggression, violence and suicide.

-Skills are impaired by cannabis use and are critical for passenger vehicle pilots and drivers likely to lead to fatal accidents.

-Cannabis use leads to cancer with far higher risk factors than tobacco particularly for lung cancer and cancer in the respiratory system.

-Cannabis is addictive, is hard to stop using and leads onto other illicit drug use.

-Cannabis adversely affects human reproduction, pregnancy and fetal development.

-Cannabis use causes brain damage, reduces cognitive function, adversely changes personality and decreases educational performance.

-Cannabis use causes mental illness, psychosis and schizophrenia.

-Cannabis can never be used as a medicine.



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