When you go from a place relatively close to sea level to a place of higher altitude, your:
1. Hair will get a lighter shade (pubic included).
2. Have a few key moments that stand out as particularly AWESOME. (aka rad, bodacious, cat's meow, or ColoRADo)
"I came home from Colorado and my hair is way lighter, my skin is more tan, I can run a 4 minute mile, and drink 15 beers an hour!"
"Hiking out to (X) spot to hit those freshie stashes, eating ice cream, and getting high-altitude drunk and blacking out that night were my high-altitude highlights!"