Shuzi strengthens and fine-tunes the human biofield, making your mind and body more resistant to the stress of any form, including electromagnetic fields (EMF), harmful emissions radiating from electronic equipment such as cell phones, computers and hair dryers. Electromagnetic fields can stress the body in several ways, such as affecting your heart rate, disrupting your brain activity during sleep and even reducing your body's production of melatonin, thereby diminishing your resistance to "dis-ease" or stress.