Do stability training. How do you turn a bicep exercise into a core workout? Add a stability challenge! Do the exercise in a standing position and add an unstable surface under your feet. That way you have to brace your core and use your abdominal muscles to balance and stay upright while you work your arms. You can add this kind of balance challenge to any exercise. Use tools like a wobble board or a bosu to enhance your stability training.
Another imbalance that plagues the abs is between the obliques, the muscles that cinch your sides. You have two sets on both your right and left, and if you show them love, they'll give you a nice hourglass shape. Sadly, your left obliques start out at a disadvantage, says Hahn. Blame your heart, which takes up extra space and makes the obliques difficult to tone—an issue that's compounded if you're right-handed. "Think about where your mouse pad is," says Hahn. "Then you shake hands, change the radio station in the car—you do so much with your right side, making it stronger."
HOW TO MAKE IT: Preheat oven to 350 degrees. Cut a 1 pound, small spaghetti squash in half and scoop out the seeds with a spoon. Place in an oven-safe baking dish, flesh-side up, and pour about 2 tablespoons of water into each half. Cover with aluminum foil and bake for 50 minutes to an hour, or until tender. In the meantime, pour a serving of marinara sauce into a small saucepan along with 6 of the mini meatballs to begin to heat up and defrost. Cover. Once the squash is done, pour out the water and use a fork to scrape long, spaghetti-like strands from the flesh onto your plate. Save the other half of the squash for lunch tomorrow.

The external obliques are the V-shaped muscles running diagonally down your sides that, along with the internal obliques underneath them, help you rotate your spine when a Ryan Gosling look-alike walks by. The rectus abdominis, meanwhile, is the straight-down-the-center muscle which, yes, can make you appear to have a six-pack if you have a seemingly single-digit body-fat percentage like Ryan Gosling's. The one remaining ab muscle, which Dr. Herrera's surface EMG won't be picking up, is the transversus abdominis. The deepest-down of all, it does a complete wraparound of your midsection and pulls it in like a corset.
Lower your sodium intake. Sodium causes your body to retain water, which causes you to look bloated — especially around your abdominal region. Whenever possible, try replacing high-sodium foods with healthier options. Switch regular table salt for kosher or sea salt, which is lower in sodium. Some foods high in sodium include soy sauce, restaurant meals, MSG, cured meats like pepperoni and salami, ham, bacon, sauces, and snack foods.[2]
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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