You ever wonder why you feel out of control sometimes when you're anxious? Almost like a primitive being or something? Well, it's because -- at your core -- you're still a caveman/woman. Think about it, if you take away your house, car, iPod, cell phone, and all your other modern gizmos, you're nothing more than a semi-hairless ape, albeit a good looking one. See, in the past 200,000 years humans haven't changed all that much. In fact, with the exception of some major behavioral adaptions about 50,000 years ago, we're  fundamentally