Men Can Think of Nothing, While Women Can't Stop Thinking

I was on the subway heading to work like most days. Most of the time, I have my head down buried in a book and become oblivious to the people around me. Today, I decided to close my book, and look around. I always wondered what people were thinking while riding the rocket. Were they tired? Stressed about something at work or in their personal life? Were they thinking about dinner or their next vacation? Or were they not thinking about anything at all? Is that even possible?

I remember someone told me once, that the people that seem like the 'crazies' who yell profanity, or talk to themselves are actually not the crazy ones. Instead, we who keep silent and stare or pretend to not hear are the crazy ones.

Chris Rock once said, women never stop thinking. Now that I've thought about it, I agree with him. Well I can't speak for all women, but I really can't stop thinking. The only time I'm not consciously thinking about something, is when I'm sleeping and even then I feel that I might still be thinking when weird dreams start to appear. The moment I'm awake, even if my body is still asleep, my mind starts cracking, what time is it? Can I sleep through a few more snoozes? What am I going to wear? I wonder how busy traffic is today and it just goes on and on and on.

I really really wish that I had a 'think on' and 'think off' botton somewhere on the back of my head. Some days, I just don't want to think about anything but I just can't. I can't help it when my brain or my mind jumps from one topic to the next. Some thoughts make me happy and some thoughts just make me plain sad.
How is it then, that men can do this? Do they actually have an invisible switch on the back of their heads that allow them to think about absolutely nothing? A few of my guy friends have confirmed that they can actually not think about anything, at all.

A wise female friend of mine once noted, we are all human beings, male and female. But why is one gender wired so differently than the other?
I really wouldn't mind stepping into a man's brain for a day, just to see if its really true. To all you males out there, do you too have an invisible 'think on' and 'think off' switch on the back of your head?