Final answer:
Healing is more effective in a relaxed state because stress impairs immune responses that are critical for wound repair. Techniques that promote relaxation can aid the healing process by enhancing the immune system, which acts as the body's protective shield.
Step-by-step explanation:
The statement that healing only happens in a relaxed state and that you cannot heal in a stress state is mostly true. Studies, such as those by Glaser & Kiecolt-Glaser and Benson & Proctor, have shown that stress can significantly slow down the healing process by impairing necessary immune responses. Psychological stress can result in lower levels of immune proteins essential for wound healing, thereby weakening the body's 'shield' against illness and injury.
Healing practices often include techniques that promote relaxation, such as sitting upright in a comfortable chair, being in a quiet environment, repeating a mantra, and focusing on pleasant thoughts. These practices help to create an internal environment conducive to healing by increasing relaxation and possibly enhancing the immune response.