When an individual encounters a stressor, the body undergoes a series of physiological responses known as the "fight-or-flight" reaction. The hypothalamus triggers the release of adrenaline and cortisol from the adrenal glands. These hormones increase heart rate, blood pressure, and blood glucose levels, preparing the body to either confront or escape the threat. In nursing, it is essential to manage stress in patients through relaxation techniques and therapeutic communication.
