Probably more than 2x/week, but a super-simple and fast workout to do while watching TV (or waiting for cookies to bake....?)
A lean chiseled core signals a fit and healthy body and sex appeal, and is, without fail, at the top of everyone's wish list.
30 Bedtime Workout Challenge Routine Exercises For Weight Loss - Do this bedtime workout routine right before you go to bed. You will get a good sleep after :)
workout motivation for teens - Google Search