Genetics is another unchangeable factor that affects your ability to develop a six-pack, says Holly Herrington, a registered dietitian at Northwestern Memorial Hospital's Digestive Health Center in Chicago. "We get things from our families," including our musculature and build, Herrington says. The offspring of volleyball star Gabrielle Reece, who is 6 feet, 3 inches tall and muscularly lean, with well-defined abs, will almost certainly have a different build than someone who is short and stocky, for example. "It doesn't mean you can't strive [for defined abs], but some of it is genetic," Herrington says.
World-renowned spine specialist Stuart McGill recently referred to the Swiss-Ball Stir-the-Pot as the best core exercise you can do. Try it once, and you’ll start to see why: It’s hard. Make that really hard. That’s because it combines two elements that leave your abs screaming: instability and dynamic movement. This combo allows you to work your rectus abdominis (a.k.a. six-pack muscles), obliques, and all of the muscles that help stabilize your spine from just about every direction. The upshot: an ab workout like you’ve never done.
For example, believing that you should eat your pre-workout meal is a great way to procrastinate with your training. What if you worked overtime and you don’t have enough time to eat your pre-workout meal? What if you don’t have enough money to buy supplements? All the items in the above list have the potential to evolve into excuses for procrastinating, or worse, quitting. Just forget about them and only do what matters. This will save you enormous time and willpower that should be spared for the things that actually matter in your quest to get abs.
“For me, getting a six-pack was about paying attention to what I was eating and lifting heavy weights at CrossFit. I do have a semi-strict diet, and I loosely count macros (focusing on daily carbs, protein, and fat intake rather than blindly counting calories) to stay balanced and on track. It sounds like a lot of work, but it really isn’t. Eventually, it just became a part of my lifestyle, and it’s something I enjoy doing. I even started a custom meal-plan business based on macros because I had such great results!” —Tina Haupert, @carrotsncake