life cycles.

This has been a known way of human life,
alternation between two opposites.

Western management has always been trying to make most out of people, let say Human Resources, because in many sectors of the business it's People that do the work not the machine…

So they studied and found so many things about behavior of human.

Human Concentration and attention is not a constant behavior.
Normal human needs to have variety in his time cycles
(daily cycles, weekly cycles, monthly cycles and ...)

When we spend sometimes free, we tend to find something to do, and when we spend months doing one thing, we like to have some times free. - This sentence is about people with a purpose in their lives, not aimless useless people… -

and at this point the big problem is revealed.
for intellectuals in Iran, the path has no alternations, cause when they want to have some free time, this means facing Silly members of Basij , this means Wasting time behind traffic , means ZERO social activity and thus we should end up doing 11x10^7 parts puzzles or some other in the house activities , that will alter , and has already altered normal behaviors of many of us , turning us into introverts .

just visit some weblogs and you'll find out ..

http://www.bbc.co.uk/persian/iran/story/2005/11/051101_mf_ba_times.shtml
http://mandm.blogfa.com/
http://www.arashcube.blogspot.com/