Updated: February 10,
Muscle is mainly built up through strength training.
Don't believe everything you hear when it comes to building sexy abs - if a certain piece of information sounds too good, it probably is.
The Secret to Super-Tight Abs
For more tips from our Fitness reviewer, like how to do a basic ab crunch, read on!
Description: Calculate your basal metabolic rate , then count the calories from the food you eat throughout the day. Within minutes, you'll feel that satisfying burn in your sides!