I stopped flying too, though I didn't even consider it a health issue. For me it was a combination of high-minded idealistic principles (about liberty/fascism,

I stopped flying too, though I didn't even consider it a health issue. For me it was a combination of high-minded idealistic principles (about liberty/fascism, consumerism and so forth) and just basic kneejerk hedonism (i.e. noticing "this process produces displeasure and unhappiness"). So I cut it out of my life. No big whup. I'm sure they miss my little $1,000/year even less than your $170,000[1] but I'm better off for it. [1] ...which BTW they probably don't miss either, since it was probably replaced by 170 other willing consumers with $1,000 each, who haven't yet learned how unnecessary & shitty air travel is, or haven't yet acted on it.