f. ivan going to you with that, how much does our sharing lead to better fitness and health? how much of it is part of our instant gratification full culture? >> it goes both ways. it helps some people and some people are motivated by competition but for others it also deferred them. people like seeing others, you know, succeed along with them, and having community access i think is the really bigger image when you use these devices. >> just how easy is it to fake the results on these fitness gadgets? and why cheat yourself in the first place. next we'll break down if working out for a global audience is feeding your motivation or just your ego. interaction, with this job, waj has the word. >> get exclusive app content, receive apps, quizzes and guest information. interact in real time. you can be our third co--host. vote, tweet, video content, we'll use them on air. this literally puts you in the in the courtroom. >> no doubt about it, innovation changes our lives. opening doors ... opening possibilities. taking the impossible from lab ... to life. on techknow, our scientist