Why are there so many myths out there and why are they so pervasive and persistent? Mainly because mainstream media has perpetuated them, but also because people just don’t know any better, since they haven’t seen the recent research. Here are the top 7 exercise myths still circulating today and their modern answers, based on the research. I could cite thousands of studies, but I will limit it to just a few here, with a wide range of years to draw from, so you can see how long the truth has actually been available to us!
Myth #1: You have to exercise at least an hour to make it worth your while.
I’m still not sure where this one came from. Most trainers require an hour from their clients. Maybe they think it’s a value thing, but most of that hour is chit-chatting and rest periods, with very little real exercise taking place. Science has shown us that a 15 minute workout can cause much better results than the traditional long duration workouts. (http://jp.physoc.org/content/588/6/1011.abstract)
Myth #2: Weight training always


