Obesity
Obesity and its ensuing complications -- such as diabetes, infertility and heart disease -- are some of the biggest concerns of the 21st century. Skipping breakfast may increase your risk of obesity or make it harder to lose weight. The Weight-control Information Network reports that if you eat breakfast you are less likely to overeat throughout the rest of the day. Since you fast overnight while sleeping, forgoing breakfast adds to this fasting period and may disrupt blood sugar balance and insulin output. Skipping breakfast may also trigger bad eating habits throughout the day, as cravings ensue and quick-fix fast foods are often sought out. Furthermore, eating breakfast boosts your metabolism and increases your energy throughout the day. A study in the August 2013 issue of the "British Journal of Nutrition" reports that when you do not eat breakfast, your energy is reduced and physical activity levels decline.