Waist Trainers: what do they ‘really’ do inside your body?

Organ Compression
The entire reason why shapewear works is because it compresses. Given that fact, the garment puts tremendous pressure on your stomach, intestines, and colon. In an interview with Huffington Post,  gastroenterologist Dr. John Kuemmerle shared that restrictive clothing can make acid reflux and heartburn worse, and provoke erosive esophagitis.