>> STEP INTO ANY CROSSFIT GYM AND THIS IS USED BY ANY OTHER CROSSFIT BANDS. IT IS NOW BASED IN BOSTON. >> WE BUILT IT OUT OF THE HARVARD INNOVATION LAB. THIS WILL KICKSTART KICKSTARTER THE COMPANY. >> THIS IS A CAPTAIN OF THE HARVARD SQUASH TEAM. HE BECAME DETERMINED TO FIND A WAY TO IMPROVE HUMOR AND PERFORMANCE WHILE IN COLLEGE. >> I WAS THE ONE THAT USED TO OVER TRAIN. I GOT INTERESTED IN HOW YOU COULD PREVENT OVERTRAINING. HOW COULD YOU ULTIMATELY PERFORM BETTER AS AN ATHLETE? THIS IS A TRAINING AND >> IT MEASURES HEART RATE, HEART RATE VARIABILITY, SKIN CONNECTIVITY, THE TEPID AND ACCELEROMETER. >> THAT MEANS THAT IT KNOWS WITH INCREDIBLE ACCURACY WHAT IS GOING ON IN YOUR BODY, HOW HARD YOU ARE WORKING AND RECOVERY. >> COACHING, WHAT ARE YOU SUPPOSED TO DO? IT CAN’T TELL YOU WHAT YOU SHOULD DO TODAY TO BE A BETTER VERSION OF YOURSELF. THE GENERAL IDEA IS TO WORK REALLY HARD. I THINK THAT IS REALLY EASY TO OVER TRAIN. >> THIS IS HOW RECOVERED SHE IS. >> IF I HAD A LONG DAY OF TRAINING PLANNED AND I WAKE UP WITH 40% RECOVERED OR LESS, I CAN ADJUST FROM THERE. THIS IS HOW HARD YOU’RE WORKING. YOU CAN PROGRAM IN AN ACTIVITY AND THAT THE DEVICE DETECTED ONCE YOU BEGIN. >> STAR ACTIVITY. >> WATCH YOUR -- START ACTIVITY. >> BEFORE, I WAS NOT VERY AWARE OF HOW IMPORTANT RECOVERY WAS. THAT IS THE BIGGEST THING IT SHOWED ME. >> TWO OF OUR FIRST -- >> THE CUSTOMER BASE IS RAPIDLY EXPANDING. >> THEY ARE TRYING TO OVERCOME THE STRESS, THEY’RE TRYING TO GET MORE SLEEP, THEY TRAVEL A LOT. SURGEONS, DOCTORS, COPS, FIREMEN. >> THE BAND IS MEANT TO BE WORN ALL THE TIME. QUITE THE BATTERY SLIDES ON. >> WEARING THIS FOR 40 MINUTES GIVES YOU A BATTERY LIFE. >> BECAUSE YOU NEVER TAKE IT OFF, AESTHETICS ARE IMPORTANT. THERE IS A MYRIAD OF COLOR AND FABRIC CHOICES. >> WHICH BAND DO YOU LIKE THE MOST? >> YOU CAN GET IT ON WHOOP.COM. THIS IS PUBLICLY AVAILABLE. >> REMEMBER TO OPTIMIZE YOURS, PLAY HARD BUT ALSO SLEEP. >> WEARABLES SUCH AS WHOOP ARE THE NUMBER ONE FITNESS TREND IN