Neurokinin-3 is a neuropeptide that plays a crucial role in regulating various physiological functions, including stress response, reproductive behavior, and circadian rhythms. It is part of the tachykinin family of peptides and primarily interacts with the neurokinin-3 receptor (NK3R), which is found in several areas of the brain. Research has shown that Neurokinin-3 is involved in modulating anxiety and mood, making it a potential target for treating psychiatric disorders. Additionally, it has implications in reproductive health, influencing hormone release and fertility. Understanding its functions may lead to new therapeutic approaches for related conditions.