Cardio-vascular disease becomes more common as you move away from the equator.
Yes, but is it genetic or environmental? In other words, do people who move away from the equator have more CVD, or do people whose ancestors lived further from the equator have more CVD?
r/Fitness does a weekly "Moronic Monday", a judgment-free thread where people can ask questions that they would ordinarily feel embarrassed for not knowing the answer to. I thought this seemed like a useful thing to have here - after all, the concepts discussed on LessWrong are probably at least a little harder to grasp than those of weightlifting. Plus, I have a few stupid questions of my own, so it doesn't seem unreasonable that other people might as well.