> People have become more aware of the risk factors, and behave accordingly. I wonder how this could be properly measured. My impression based on rising obesi

> People have become more aware of the risk factors, and behave accordingly. I wonder how this could be properly measured. My impression based on rising obesity rates and decrease in overall physical activity levels is that we are terrible at making sacrifices in the present for our future self. Sure, we all avoid trans-fats, leaded fuel, and other similar choices; but all of these are largely forced on the entire population.