Experts have not yet clarified at what time and why teenage changes begin. A group of the Çukurova University of Turkey has identified a hormone that can be a teenage lighter, neurocine B hormone. To do this, nine families with members who have not undergone these changes in adolescence due to problems of hypogonadism have been analyzed. Many of the members affected by hypogonadism have seen that they have a mutation in the gene that encodes this hormone or when it encodes the hormone receptor. Scientists know that this hormone is not the only factor that triggers adolescence, but have considered it a very important component.