Comment by mikerichards

How tired are you after a days of works. Many of us are mentally drained, which we feel as physically drained after work.

Not only that, but physical activity plus our mental strain screws with our cortisol levels.

Personally, I used to work out a lot. Then I realized I was getting crabby all the time. I think I have cortisol problems, but not sure.

Anybody refer me to research with stress and and physical workouts and not getting enough sleep?