1. Bicycle Crunches are a great ab exercise and work the abs from every angle. It’s a combination of the regular crunch, a side-to-side motion that hits the oblique muscles and a reverse crunch that targets the lower abs. You can change the difficulty level by increasing or decreasing the range of motion used and the speed of movement as well as the intensity of the crunch by holding and squeezing.

Drink at least 2 liters (0.53 US gal) of water each day. Water has the double effect of both hydrating your body and filling your stomach with a certain volume of a liquid that has zero calories. The Institute of Medicine determined that an adequate intake (AI) for men is roughly 3 liters (0.8 US gal) (about 13 cups) of total beverages a day. The AI for women is 2.2 liters (about 9 cups) of total beverages a day.[12]
Belly fat is, in fact, the colloquial term for abdominal fat. According to medical experts, belly fat can be potentially dangerous. Excess of it can lead to a number of health problems including heart diseases, high blood pressure, type 2 diabetes, a decrease in the level of HDL or good cholesterol, and can even lead to strokes or sleep apnea. You need to combat this problem before it gets too late.
It’s true that a caloric deficit—burning more calories per day than you take in—is a requisite of weight loss. But creating a deficit doesn’t have to (and shouldn’t) involve deprivation. That goes for calories, carbs, sugar, fat, or any other commonly demonized nutrient. “No one food is responsible for your weight,” Langer says, explaining that a good vs. bad mentality sets people up for disordered eating and exercise habits. In fact, caloric deprivation increases how the brain responds to food, setting you up for binge-eating down the line, according to research from the Oregon Research Institute.
Physical activity helps burn abdominal fat. “One of the biggest benefits of exercise is that you get a lot of bang for your buck on body composition,” Stewart says. Exercise seems to work off belly fat in particular because it reduces circulating levels of insulin —which would otherwise signal the body to hang on to fat—and causes the liver to use up fatty acids, especially those nearby visceral fat deposits, he says.
Weight loss isn’t a linear event over time. When you cut calories, you may drop weight for the first few weeks, for example, and then something changes. You eat the same number of calories but you lose less weight or no weight at all. That’s because when you lose weight you’re losing water and lean tissue as well as fat, your metabolism slows, and your body changes in other ways. So, in order to continue dropping weight each week, you need to continue cutting calories.
In a way, moderate-intensity physical activity is that "magic pill" a lot of people are looking for, because the health benefits go beyond keeping your waistline trim: Not only can it reduce your risk of cancer, stroke, diabetes and heart attacks, but studies have shown that physical activity can significantly improve the moods of patients with major depressive disorders.