we're traveling all across america talking to people about their hearts. ooh, take this exit. how's the heart? i feel like it's good. you feel like it's good? how do you know when it's time to check in on your heart? how do you know? let me show you something. it looks like a credit card, but it is the kardiamobile card. that is a medical-grade ekg. want to see how it works? yeah. put both thumbs on there. that is your heart coming from the kardiamobile card.