What are the feng shui taboos in bedroom decoration?

According to Feng Shui theory, it is best not to put computers, clocks, radios, stereos and other electrical appliances in the bedroom. If you must put it in the bedroom, don't be too close to the bed. Because electrical appliances produce electromagnetic waves, electromagnetic waves can cause headaches, arrhythmia and shallow breathing. And the electromagnetic field affects the quality of sleep, which will interrupt the REM stage of sleep and lead to insomnia.