I don't have the typical 9-to-5 schedule like most of the cubicle workers I know. I also don't have the grey hair, wrinkles and obvious stress signs on my face that they do.

I think they're just getting "burned out" with their schedule. I have structured my life so that I never need an alarm to wake up in the morning. You'd think this would be a trivial thing, but it really makes a big difference.

Part of the stress they experience is just having something "scare" them awake in the morning. Then the usual groggy stumbling to get coffee (stimulant) that they can't survive the morning without, then the horrible commute, etc..

Western working life is designed to wring every bit of energy out of you. Fight back by reducing the amount you have to contribute. If you can, you will see immediate benefits.