You’ve crunched, planked, sat up, lifted legs, and you still don’t have the tummy of your dreams. Well first thing is first- abs are made in the kitchen, so check there before anything. But after you’ve done that, you might want to add one of the fitness industry’s best kept secrets to your routine: stomach vacuuming. And before you get any ideas, this has nothing to do with your Dyson or liposuction. It’s something so easy, you can probably do it whenever what you’re sitting or laying right now. Follow the link below for the tummy-flattening details.