Mind-body techniques are practices that use the power of the mind to influence physical health. These techniques are based on the understanding that the mind and body are interconnected, and that emotional, mental, and behavioral factors can significantly impact physical health. Common mind-body techniques include: 

1. Meditation: This practice involves focusing the mind to achieve a state of deep relaxation and heightened awareness. Meditation has been shown to reduce pain perception by calming the nervous system and reducing stress hormones in the body. 
2. Mindfulness: Mindfulness is the practice of being fully present in the moment without judgment. It helps patients with chronic pain by reducing the mental and emotional reactions that often exacerbate pain. 
3. Deep Breathing Exercises: Controlled breathing helps to calm the nervous system, lower blood pressure, and reduce muscle tension, all of which can contribute to pain relief.