How to do mountain climbers: Get into a high-plank position with your wrists directly under your shoulders. Keep your core ...
A doctor has shared a simple exercise he claims helps tighten and flatten your stomach - and it's not sit ... giving you a flat belly fast." READ MORE: Dr Michael Mosley's 2p pill could help ...
You can fast, improve your sleep and diet your way to a flatter stomach. Here's how to lose belly fat without working out.