CRHR1 (Corticotropin-Releasing Hormone Receptor 1): CRHR1 is a receptor for corticotropin-releasing hormone, a key regulator of the body’s stress response. It plays a central role in the hypothalamic-pituitary-adrenal (HPA) axis, influencing stress regulation, mood, and behavior. Dysregulation of CRHR1 has been linked to psychiatric conditions such as depression and anxiety.