Biofeedback is a technique that teaches individuals how to control physiological functions by using real-time data about their body. It often involves sensors that measure bodily functions such as heart rate, muscle tension, and skin temperature. By providing feedback, individuals can learn to manage stress, anxiety, and other conditions through relaxation techniques and self-regulation. This method is commonly used in various settings, including therapy and rehabilitation. It can help with issues like chronic pain, migraines, and high blood pressure. Biofeedback is considered a complementary approach, often used alongside traditional treatments to enhance overall well-being.