Reference?
What is the basis for this statement? Where is your data?
Or is this just more boomer, "Do as I say not as I do-just believe me!"?
Without any reference to my data just common sense pilots of any age are probably healthier overall simply because he or she is participating in physical evaluations whereas the general population in the US(males) never see a doctor unless he is half dead. As far as obesity the US is one of three of the most obese countries in the world behind England and Mexico. The US is catching up fast because we prefer to be number one in everything.