Individuals who are genetically unable to produce leptin tend to be obese; low leptin concentrations are associated with increased hunger and gains in body fat. (sock-doc.com)
Research indicates that people who don't get enough rest experience increased hunger and unhealthy food cravings. (fitnessandpower.com)
As you might imagine, not eating all day increases the hunger hormone to very high levels. (ericamesirov.com)