Recently I am doing two sets of pull-ups a day with iron bar, installed on the celling.

At depressing starts of work, especially after the morning after holidays, I could feel that my tension become "high"

I often heard some stories about the escape from depressing feeling by exercises, so I think that

"Human body might be simple beyond my imaginations"

If you say that "It is just your (Ebata's ) body that is composed simply", I can not argue with you.