Embrace the Houston weather. âOne of the biggest factors of Wings For Life is that everyone has their own conditions,â says Neff. âSo you might have somebody in Europe where the weather is actually quite nice, but in Houston it's awful. So that's a big, big factor, but last year I just decided to have fun with it.â  But there's a benefit to humidity, says Neff. âWe call it poor man's altitude,â he says. âThere is an actual physiological aspectâlike athletes go to altitude to train because it increases their red blood cell content, which is really the special formula for endurance running. But humidity has a similar effect in that it increases your blood volume. So you have more blood, which in turn has more red blood cells."