in fact every person who tries procera avh receives a free brain test from brain research labs to assess and measure his or her memory and brainpower. and you take the test privately in your own home, so no ones watching to see how you do and it only takes a few minutes to complete. can even fun! and you can retake the test whenever you want to see that your actually getting improvements with procera and its making in your mental performance. >i've never heard of such a thing, but i do i like the idea though that you can actually measure your mental improvement, and i like the idea that you can do it in the privacy in your own home. now everywhere i go i have to ask you about this, i see people drinking those energy drinks. it seems that there doing it all the time? now, let me ask you how can procera avh make these amazing improvements in the brain with out using drugs or pharmaceutical additives? whats the secret? >>that's a great question, patrice. the researcher who developed the formula knows the human brain like the back of his hand. he knew that it was possible to make dramatic ch

at the research lab i was hooked up to a brain wave monitor and a device that tracks eye movement. feel okay now. but not great. then i got behind the wheel of a minivan. as tired as i was, i thought i would be okay. we'll see. i feel like i can drive pretty well. then, i started driving on a closed track with a researcher sitting next to me who could step on an emergency brake if things went awry. i'm feeling pretty worn out. soon i was becoming sleepier and sleepier, it became a struggle to keep my eyes open and hold my head up. before long i was experiencing micro sleep. i looked like a normal wake driver but you can't tell that my brain is actually asleep. half hour in it became more obvious. i had fallen asleep at the wheel and driven completely off the road. that was nod got good. i soon realized i just couldn't go on. i'm done. >> put it in park then. >> good idea. it was too dangerous. that was tough. back in the lab, they showed me what was going on inside my brain while i was driving. >> this is evidence you're falling asleep. >> reporter: my eyes were open but see how th

. >> you're looking at some the research and interesting what some of the doctors are looking at the brain labss who suffer no apparent or at least outwardly obvious symptoms of concussion, and then others with similar amount of concussions are winding up in hospitals, driving around in circles in parking lots until someone comes and finds them and takes them home? >> that's true. we don't know the reason why the effects are so different, but you do have this issue looming over the players themselves, players who are lucid as can be like franco harris and bradshaw and philippi philippi philippineano. >> and if you forget your keys or somebody's phone number, is this how it starts. >> clayton: you're writing the book, a the era, but-- >> it's the wild and wooley football that was played in its way, not saying it's better, totally different. >> clayton: a great stocking suffer, the last headbangers". a dream cruise to italy pass injuries are fired up when they're sick. and stressful? i was at the mall. we're talk about the biggest pet peeves this time of the year. ♪ this christmas fire side blazi