"SHARK TANK," THIS FRIDAY, 8:00 -- 7:00 CENTRAL RIGHT HERE IN ABC. >> A NEW STUDY ON THE BENEFITS OF WATCHING. JEN ASHTON TO EXPLAIN. EVERY LITTLE BIT HELPS? >> EVERY LITTLE BIT HELPS AND THERE WAS AN OP-ED IN "THE NEW YORK TIMES" RECENTLY THAT SAID WALKING IS THE WORST-KEPT SECRET. >> I LOVE THAT. >> TALKS ABOUT THE HEDGE OF BENEFITS. THIS STUDY LOOKED AT 3,000 PEOPLE, FOLLOWED THEM FOR TEN YEARS, JUST WANTED THEM TO SEE HOW MUCH, HOW OFTEN, AND HOW MUCH GOOD DOES IT DO. THEY FOUND A MAGIC NUMBER, 8,000 STEPS. PEOPLE WHO DID THAT 1-2 TIMES A WEEK, THAT'S IT, LOWER THE RISK OF DEATH FROM ALL CAUSES. >> AND IT'S NOT JUST HEART HEALTH. >> WE KNOW HEAD TO TELL BENEFITS OF WALKING. THIS IS NOT NEW AND IT LITERALLY RUNS THE GAMUT. YES, IT LOWERS THE RISK OF HEART DISEASE, IT CAN HELP LOWER YOUR BLOOD PRESSURE, REDUCE THE RISK OF OBESITY AND TYPE 2 DIABETES, IT IMPROVES YOUR MUSCULOSKELETAL STRENGTH 100%, AND BONE DENSITY. IT BOOSTS YOUR MOOD, CLEARS YOUR MIND, REDUCES YOUR STRESS. THERE'S LITERALLY NOTHING IT CAN'T BENEFIT. AGAIN, SO MANY OF >> HOW DO YOU WORK IT INTO YOUR ROUTINE? >> REWARD YOURSELF WHEN YOU MEET THOSE GOALS, WHETHER IT'S A NEW PAIR OF SNEAKERS OR SOMETHING ELSE. WALK WITH THEM AND YOU ACTUALLY LIKE TO HELP PASS THE TIME. LOCKING IN DIFFERENT LOCATIONS. WE HAVE HEARD PARKING FARTHER AWAY FROM THE GROCERY STORE. MAKE IT SAY HAVE TO TAKE AS EXTRA STEPS, AND MAKE IT PART OF YOUR DAILY ROUTINE. A LOT OF PEOPLE ARE WALKING DURING CONFERENCE CALLS, OR DOING LOCKING MEETINGS. I SEE NURSES AROUND MY HOSPITAL WALKING ON THEIR BRAKES. EVERY LITTLE BIT HELPS. WE HAVE PROBABLY NEVER GOING TO SOLVE THE CONTROVERSY OF HOW MUCH IS THE MAGIC NUMBER, BUT AS YOU SAID, MORE