crunches vs. 6 second abs

hey guys this is my first post. i started working out last spring and i lost 60 pounds so far. anyway .i have to right a paper about advertising teaching us to think that money can buy happiness and quick solutions work the best.........so im comparing that 6 second ab machine on tv with good old fasion crunches and working out........my question is how do regular crunches work better than those "quick" solutions on tv.....feel free to elaborate in as much detail as you wish. thanks
 
What you need to focus on is this.

the Ab machines on TV pretend that they will give you great abs. When in fact, your abs are there all along, under the fat.
You need to get the %age of fat on your body down to a minimum to be able to see your abs.

Weight loss comes from diet and exercise, not ab crunches or crunch machines.
 
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