According to the Mayo Clinic, we sit for 10 hours a day. And that not only slows our metabolism to a crawl – and raises our risk for blood clots – it also makes our rear-ends bigger! Because it causes the soft tissue in the behind to spread out in 3 directions. Imagine squishing play-doh with your palm and you get the idea. And when the cells in your rear have all that pressure put on them, they respond by generating more lipids – also known as fat! To avoid that, stand up and move every hour for at least 2 minutes.