And maybe a new mattress, because it’s not just the amount of time you spend sleeping that keeps you lean, it’s also the quality of your sleep. Fat cells in your body produce a hormone called leptin that helps the body keep track of how much potential energy (i.e. fat) it has stored. But leptin is only produced during certain stages of sleep. Miss out on those stages because you’re not resting soundly enough, and you’ll disturb levels of the hormone, leaving your body with no real idea of its energy reserves. Consequently, you’ll end up storing calories rather than burning them.
"A study published in the International Journal of Obesity compared weight loss after an egg breakfast compared to a bagel breakfast containing similar calories," explains Toby Amidor, R.D., author of The Greek Yogurt Kitchen. "Results founds that participants who consumed two eggs in their breakfast while following a lower-calorie diet lost 65 percent more weight and reduced their waist circumference by 34 percent compared with those who were on a similar calorie bagel breakfast." Eggs are also a great source of protein, which works to keep hunger at bay and curb overeating.