Alzheimers Strikes Former Football Players

As Vikings and Packers fans await the clash of their titans Sunday, there are those who says the clash comes with a cost.

Neuroscience researcher Mark Underwood of Madison, Wisconsin, says former NFL players have a disproportionately higher incidence of early Alzheimer's disease, compared to the population as a whole. He tells KLKS News, it's time to gauge the impact of those collisions.

Underwood says the number of bumps and bruises in life add up.