Professor Alan Barber, lead investigator for the study, said "All but one of the stroke patients who were cannabis users also used tobacco regularly". Tobacco is a proven cause of stroke. This study is fundamentally flawed.

Prof. Barber's claim that "We believe it is the cannabis and not the tobacco." is disgraceful, unscientific and provides an insight into the true motivation of those conducting this type of 'research'. It isn't genuine scientific research, it's an attempt to produce propaganda to support prohibitionist policies.

There is far more peer reviewed evidence to show that cannabis is neuroprotective against stroke, brain trauma and neurodegenerative disease