Many doctors are apprehensive
Many healthcare professionals and exercise specialists are doubtful of the waist trainers’ real benefits when used, and many express their apprehension about its safety too. Besides, no one wants to be so uncomfortable when you're engaging in physical activity, so it's probably not the best idea to use one when you're working out. It's much more important to focus on your overall wellbeing than waist size. That can come later, after you make sure that you are taken care of first. It’s never healthy to overwhelm your body.