Neurokinin B is a neuropeptide that plays a crucial role in the regulation of various physiological processes in the body. It is primarily involved in the modulation of pain, stress responses, and reproductive functions. Neurokinin B acts on specific receptors in the brain and other tissues, influencing hormonal release and neuronal signaling. Research has shown that neurokinin B is particularly important in the hypothalamus, where it helps regulate the release of gonadotropin-releasing hormone (GnRH). This regulation is essential for reproductive health, impacting menstrual cycles and fertility in females, as well as testosterone production in males.