Nothing says fit like a washboard stomach. But scoring high-definition abs isn't as easy as cranking out crunch after crunch. To sculpt a stronger, more chiseled core, you need the best ab workout to work the two dozen muscles between your hips and your shoulders in the many ways they function. After all, your abs do more than flex on a daily basis—they stabilize and rotate, too.
Start on your back, bend your knees up with shins parallel to the floor and extend your arms to the ceiling. Straighten your left leg and extend your right arm back to about 6 inches off of the floor, and then come back to the original position. Then, repeat the exercise on the opposite side. Just be sure to keep your abs engaged throughout this move to really work your muscles!
Last but not least, it is essential to get enough sleep if you want to get the six pack you have always dreamed of. As an adult, you should sleep between 7 and 8 hours per night.  People who don’t sleep enough are more prone to obesity, when you don’t sleep properly your the hormones for regulating your body’s appetite are all out of whack.  Get a good night’s sleep and you’ll find it much easier to stick to a healthy diet.
2. Cut out or greatly curtail your consumption of refined sugar. Not all calories are equal when you're trying to lose weight and develop a six-pack, Herrington says. For example, 200 calories from a robust serving of beans or from a sugary cookie provide vastly different amounts of nutrition. A serving of beans would typically contain good amounts of protein, potassium, magnesium and dietary fiber, while a cookie packed with sugar is mostly empty calories, Herrington says. She advises staying away from foods like white bread, cakes and pies and white crackers that are laden with refined sugar. You should also eschew sugary sports drinks, fruit juices and sodas, in favor of plain water or milk. "The biggest thing I advise people to avoid is added sugars," Herrington says. "If you want to cut out body fat, cut that out. Refined sugar isn't doing you any good. You get a temporary boost of energy, then you crash and crave more. It's like burning money; it's a waste." Eating too much refined sugar is also linked to fatty liver disease, obesity and diabetes, she says.

Maintaining a high protein intake —Maintaining a super high protein intake is imperative to ensure your body has enough to preserve existing muscle, ideally build more and also prevent muscle breakdown for energy while in a caloric deficit. I stuck to around 0.8 to 1 gram of protein per pound of bodyweight to ensure I allowed my body to not only preserve but grow muscle as well. For me, this came around to 130–140gms of protein a day.
The reverse crunch comes in 7th place for effective ab exercises, with a focus on the rectus abdominis. With this move, you're curling the hips off the floor, so you'll feel this in the lower part of the abs. The key to this move is to avoid swinging the legs to raise the hips. This is a small, subtle move, so you only need to lift your hips a few inches off the floor.

"Most guys neglect their obliques in favor of their six-pack muscles, and that's a mistake," says Jack. "Your obliques not only support your spine, but they also help your abs work together with the muscles of your hips and lower back to explosively rotate your torso." That means you'll be able to lift heavier loads on every exercise, while adding a ton of rotational power to your tee shot and Hail Mary pass at the same time.
I use the ab machines at the gym. I do a couple variations on crunches (sitting up and lying down both on machines with weights. I can crunch 55lbs on the one that’s sitting position, 40 on the other), hanging leg lifts (which kill my shoulders), the oblique twist machine, as well as full body workouts. I just started the gym about 2 months ago and have really upped the weight since then so my body is definitely progressing.
We put this on the list because of how easy it is to manipulate the degree of difficulty. If a regular plank is too easy for you, lift an arm, or a leg—or an arm and a leg. Put your feet into a TRX and give that a whirl. Still too easy? Take your feet out, and put your forearms in. Each one of these progressions leads to a greater training stimulus to the abs.
5. Engage in resistance training aimed at your abs. In addition to eating right and losing weight, doing certain types of exercises can help you achieve a better-defined abdomen, Singer says. "I'm sure everybody knew somebody in high school who had tremendous abs who ate whatever he or she wanted and had tremendous abs without working out," Singer says. "Most of us aren't that lucky." If developing a six-pack is your goal, doing exercises aimed at your abs can be part of a successful regimen. Such workouts would include weighted crunches and weighted sit-ups, he says. Cardio workouts are helpful for shedding pounds, but won't, on their own, lead to defined abs.
This is exactly the type of article I was looking for. I’m female 5’1” and a runner. I weighed 115 until I started at the gym and now I’m about 118 but like the way I look better now because everything is tightening and I can already see some definition. I don’t have a lot of body fat but particularly I have a very thin midsection. I don’t eat clean but I do keep track of my calories and keep a balance. Honestly I don’t want to be any thinner and don’t want to lose my curves by losing any weight but I want abs! Any extra weight I carry on my lower body (which is why I run!). But I want abs without having to cut out my iced coffee! So as long as I keep up with my calories and keep a low body fat I can still get abs? I am ab training about 3 times a week. Sorry for the book! Lol! Just blindly trying to reach my goals on my own!

Caffeine Pills — I bought into the fad and purchased fat burners. Don’t use them if you workout in the evening because you wont be able to sleep all night and that’s going to cost you some gains. I barely used these in the first 3 months and then regularly for the next 2 (with the sole motive of finishing them). I didn’t really notice any significant difference as far as fat loss was concerned but I’ve noticed more intensity and focus in my workouts thanks to the high caffeine content. While I don’t wholeheartedly recommend them, use them alternately and only for morning workouts if you purchase them. A cup of black coffee is a far more natural and preferable alternative. 

To do it: Stand with your feet planted 3-4 feet apart, toes slightly turned out, hands on your hips. Lower into a plie by bending your knees out over your toes and lowering your hips directly underneath your shoulders. Then, as your straighten back up, slowly lift the right knee up towards the right shoulder. As you go back into the plie, slowly return the foot to the floor. Be sure to move at a very controlled pace to really engage the obliques the entire time—on the way up and on the way down. Do 10 repetitions on the right side, then another 10 repetitions on the left side for a total of 20.

best ways to build core

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