Fitness myths debunked

I admit that I've been busted for assuming that just because someone is thin, they're more fit than another, heavier person. Of course, the truth is that a naturally skinny junk-food addict/perennial couch surfer is likely in way worse shape than someone with a bit of extra baggage who exercises regularly and makes a commitment to eat well.

8 other common myths about fitness are addressed and explained in this AOL Body piece. Based on the article, a lot of us are pretty misinformed about a bunch of work-out related issues. Other truths revealed include that you can't just use aerobic exercise as a way to lose weight. Building muscle is essential because the more muscle you have, the more calories you burn at any given time

The piece also talks about whether you really need to stretch before a workout, if you can skip the exercise and lose weight through diet alone and whether you can get rid of tummy fab with crunches. To find out the truth about these and a number of other common myths, take a look here.