There is a lot of research and information on drugs and treatments, but a questionnaire was conducted to find out the degree of knowledge of doctors and medical personnel in general about the hormone leptin. It was found that many people do not know what leptin is and what it's a role in the body Leptin is a hormone that plays a key role in energy consumption and regulation of energy consumption. Leptin hormone is one of the hormones that have a basic role in many vital functions of the body, and this hormone has been called many names, based on its work in the body, and the most prominent of these names are; The obesity hormone, the hunger hormone, and the fat hormone as well (1), Leptin hormone is known as a peptide hormone that is produced and secreted by fat cells responsible for regulating body weight, acting on the hypothalamus in order to reduce appetite, in addition to working to burn fat stored in adipose tissue. The hormone leptin has also been known as the hunger hormone or the satiety hormone; Because it is the hormone responsible for sending some