Answer to Question 1
Relaxation counters the harmful effects of stress throughout the body. Stress speeds up your heart rate; relaxation slows it. Stress raises blood pressure; relaxation lowers it. Stress makes you breathe more rapidly; relaxation slows your breathing. Stress tightens muscles; relaxation releases them. The long-term practice of regular relaxation activities can also change the expression of genes that control the body's response to stress and trauma.
Answer to Question 2
Visualization and guided imagery are terms often used interchangeably, but they have slightly different meanings and purposes. Visualization, as its name implies, uses the imagination to see a place, person, or object in your mind. On the other hand, guided imagery is a program of directed suggestions that involve all the senses-sounds, tastes, smells, textures, sights. Considered a relaxation technique, a meditation exercise, and a form of self-hypnosis, guided imagery is especially effective in reducing stress because it involves body, mind, senses, and emotions.