See also : [[Obesity]]<br>The hormone leptin plays an important role in appetite control, metabolism and weight loss. It is your body's natural weight control mechanism. The body doesn't always listen to the leptin message and leptin resistance occurs. The Leptin resistance is your body’s inability to use the leptin signal isn't being heard, so it cannot stimulate your metabolism or suppress your appetiteproduces. The leptin receptors have been bombarded over and over again with high levels of leptin that they have become resistant to the effects of leptin.
==Causes==
The typical modern lifestyle contributes to leptin resistance; fast food, little or no exercise, too much stress and not enough sleep.