That doctor has some good points that bike share promotes health in general, but could have easily done some research and surprised the anchor with the great point that the study actually shows a decrease in brain injuries, rather than a meaningless increase in risk of head injuries relative to other injuries (this last point is the point the news have misunderstood).

Then the doctor spun the interview round to his own research, so he's half savvy. Eating fish prevents concussion - thats pretty rad. Might break out the speargun tomorrow.