For day 18 of our workout plan for May , we're going to blast belly fat with intervals on the treadmill, and follow up that cardio session with a 10-minute video arm workout that targets the triceps. If you're not a fan of running, here's an elliptical plan  to use instead. Now get to it!
Grab a set of five-pound dumbbells, press play, and get ready to tone your triceps.
Be sure to enter our Bikini Body Countdown Getaway  to win a three-night stay for you and a friend at the El Ganzo  hotel and spa in Los Cabos, Mexico.