Kettlebell fans love the heavy round-shaped weights for a reason — kettlebell exercises combine cardio and strength training together for a time-saving calorie burn. The amount of calories you can burn using kettlebells can be amazingly high: a study by the American Council on Exercise found that the average person burns 272 calories in 20 minutes when doing kettlebell exercises. More research Read more

Unlike your abs, which you can easily gaze upon, your booty can be hard for you to see. But that doesn't mean you should neglect it, and you do want a toned backside — it's better to have a little muscle under those jeans than jiggly bits. Plus, strong glutes and hips make for a happier, healthier low back, an area prone to injury. The best way to create a strong shapely tush is to work your Read more

Circuit workouts are great for strength training, but they also keep your heart rate up, helping burn up calories while building muscle. This full-body circuit combines exercises to work your arms while toning your legs, plus your abs and back will all be challenged. And you can do this workout in the comfort of your living room! Not only is an at-home workout excuse-proof, it is also Read more

These knock-out celebs choose kickboxing, and the results are pretty obvious. Forget being a damsel in distress – kickboxing is a self-defense workout that includes empowering karate kicks and boxing punches. Beyond training to be hot, kick-ass leading ladies in action films, these celebs love kickboxing, because it doubles as a strength-training session and a high-endurance, cardio workout. Read more

Move over, P90X there's a new way to sculpt those muscles. Although CrossFit was created almost two decades ago, it has been gaining popularity in the past few years as the antidote to boring gym workouts. What's so great about CrossFit? For starters, the program is a time-saver; it's not about how long you exercise, but the intensity of it. The workout incorporates weightlifting, kettlebell Read more

Walking into celeb trainer Gunnar Peterson's private gym in Beverly Hills, I could tell the man likes his machines. The walls and center aisle of the large room are lined with every piece of cardio and strength training machine imaginable. It's a fitness fanatic's version of heaven. When Gatorade invited me to work out with one of its top trainers who trains pro athletes (like Tom Brady) and the Read more