Originally Posted by
Std Deviation
Why 50 as a threshold? I've seen a lot of out of shape 30 somethings and very fit 60 year olds. I believe lifestyle has a lot to do with adapting to the commute. Hydration, nutrition, sleep, exercise, smoking, and yes, booze consumption.
I have to disagree here. Your example is the exception and not the rule. Its like the youtubers with the video of a cat and dog napping on eachother peacefully. NASA and the AMA have extensive proof that 50 is a valid threshold of where the physiological breakdown for the average person begins.