The sociologist John Robinson is known by his colleagues as "Father Time." He has dedicated his career to researching how people use their most valuable resource, time. In the book Overwhelmed he makes a crazy statement regarding his research about time:

"Women have time. They have at least 30 hours of leisure every week. It is not as much as men, but women have more leisure now than they did in the 1960s, even though more women are working outside the home."

That's 4+ hours of leisure daily for the average woman and 5+ for the average man.  What people is John Robinson talking to?

Because in my experience, people don't have that kind of time. We are emotionally, physically, and mentally exhausted by the overwhelming nature of our life.  

We are tired.

I would suggest that we are tired for primarily two reasons: we are busy or we are wounded.