Why can't the bedroom has a variety of electrical appliances

Electrical too much inside the bedroom is known as the "fire" in feng shui, the influence is healthy.Will tell from the modern medical theory, electrical appliances will generate electromagnetic waves, affect the body's magnetic field, interfere with sleep, thus affect human health.Inside the bedroom TV, computer, therefore, a radioactive devices, and other appliances, don't be too much, not to mention on the bed.