Learn to take ownership of your nervous system and shut off your "fight or flight" sympathetic nervous system by increasing your finger temperature to achieve a calm and relaxed state.  Peripheral finger temperature training, also known as peripheral biofeedback or hand warming biofeedback, is a form of biofeedback that focuses on regulating peripheral blood flow and skin temperature in the fingers.

During peripheral finger temperature training, individuals are typically connected to temperature sensors or thermometers placed on their fingers. These sensors provide real-time feedback on changes in finger temperature. During sympathetic arousal the nervous system constricts blood vessels in the extremities and brings blood to the center of the body (finger cooling). During “rest and digest” parasympathetic activation of the nervous system the blood vessels in the extremities dilate and finger temperature increases. The goal of the training is to learn to voluntarily increase blood flow to the fingers, leading to a rise in peripheral temperature and conscious control over the stress response in your brain and body.

By receiving immediate feedback on finger temperature, individuals can practice relaxation techniques, deep breathing, or imagery exercises aimed at promoting vasodilation and increasing blood flow to the extremities. Over time, with regular practice, individuals can learn to consciously control their peripheral blood flow and regulate finger temperature, which may have therapeutic benefits for conditions such as Raynaud's disease, stress-related circulatory issues, or performance anxiety.