When you decide to “go on a diet,” you’re making the conscious decision that this is a temporary choice. You’re going to go on it, but that means that you’re going to one day—probably sooner than you expect—go off it. That’s the concept of weight cycling (also known as yo-yo dieting), and it’s extremely unhealthy. A 2014 study in the journal Diabetes Care found that a pattern of weight cycling—losing at least five pounds and then gaining it back within two years—resulted in as much as a 33 percent higher risk of diabetes and higher blood pressure.
The stress hormone cortisol can really screw with your belly. The problem with cortisol is two-fold: First, the chemical makeup of cortisol causes the body to store visceral fat. Visceral fat is stored between your main organs and in the midsection and is the most dangerous type of fat. Experts state that visceral fat increases the risk of diabetes and heart disease.