Try the Spiderman Climber: Get into plank position with arms and legs extended, hands beneath shoulders, and feet flexed. Keeping your abs tight, bend your left leg out to the side and bring the knee toward the left elbow. Pause, then return to start. Switch sides. Do 20 reps, alternating sides, with 30 minutes of cardio 5 to 6 times a week. For an additional challenge, perform planks with forearms on the floor, as shown. (Watch this video to make sure you're neailing the proper form every time.)

Sugary treats, while obviously delicious, aren't very good for our bodies—and that includes our tummies. Not only do the added calories add inches to our waistlines, but sugar overload leads to insulin resistance, which tells the body to store extra fat around the waist. But that's long-term stuff. Sugar also bloats your tummy in the short-term by feeding the bad bacteria in your gut, leading to extra gas. When it comes to flattening your belly, nixing sugar is one of the best things you can do. Here are clear signs you're eating too much sugar.

When doing an abs circuit, think about all three planes of motion, says celebrity trainer Gunnar Peterson, who works with Sofia Vergara, Kim Kardashian, and Vanessa Lachey: Try crunches and reverse crunches to hit your sagittal (front to back and up and down) plane, standing side bends for frontal (side-to-side) movement, and chops or twists for transverse (rotational) action. This will help challenge and therefore define your abs.


It's not just about weight loss. Having great gut health is linked to good health throughout your body. Scientists in this rapidly growing field are finding connections between gut microbes and the   ;immune system, weight loss, gastrointestinal health, allergies, asthma, and even cancer. With every study that's published, scientists become more convinced that having a healthy gut leads to having a healthy body.
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