What are the taboos of bedroom wallpaper color Feng Shui?

Red can make people's heart beat faster, blood pressure rise, brain waves are active, and it is difficult to fall asleep. Therefore, bedroom color Feng Shui believes that the bedroom should not be based on red. Generally, the walls should be in cool colors such as light green, light blue and milky white. As for teenagers' bedrooms, considering that they are lively and easy to fall asleep, the walls can be neutral or warm, such as orange and yellow.