What is the effect of putting luminous star stickers in the bedroom?

First, it is harmless to put luminous stars in the room.

The mechanism by which objects emit fluorescence is diverse. Some products that can emit fluorescence, such as light-emitting plastic stars, use solid-state luminescence technology, in which some luminescent materials are added, which can absorb external visible light energy and convert it into fluorescence. After the effect of visible light ceases, the fluorescence will continue for a period of time to disappear, which is called afterglow.

The color of the fluorescence and the duration of the afterglow differ depending on the material used. This kind of fluorescent rays is no different from ordinary visible light and will not cause harm to people. In the past, the phosphors of some luminous watches were mixed with a small amount of radioactive substances to stimulate the fluorescent materials to emit light. Because the amount is small, it will not cause much harm to people.

Fluorescence refers to the cold luminescence phenomenon of photoluminescence. When a certain normal temperature substance is irradiated with incident light of a certain wavelength (usually ultraviolet or X-ray), it will enter an excited state after absorbing light energy. And immediately de-excited and emit light longer than the wavelength of the incident light (usually the wavelength is in the visible light band). Once many fluorescent substances stop incident light, the luminescence phenomenon disappears immediately. The emitted light with this property is called fluorescence.

In addition, some substances can still emit light for a long time after the incident light is removed. This phenomenon is called afterglow. In daily life, people usually refer to all kinds of faint light as fluorescence in a broad sense, instead of carefully investigating and distinguishing its luminescence principle.

The phosphor itself is not radioactive. However, in order to prolong the luminescence time, some phosphors are mixed with radioactive substances, and the radiation emitted by the radioactive substances is used to excite the phosphors to emit light. This type of luminous powder has a long luminous time but is radioactive.

But fluorescent stars are not conducive to sleep. People are very sensitive to light during sleep, and light can stimulate the operation of the brain, making it difficult to sleep. To improve insomnia, it is necessary to cut off the external light source, so that the brain activity is eased, and then fall asleep.

Light is the strongest signal to the brain. It can stimulate the brain to function and let the brain know when to get up and when to eat. In addition, according to research conducted by Ohio University in the United States, even weak lighting at night can cause people to continuously increase their weight. Even a balanced diet and active exercise cannot be avoided.

Therefore, whether to stick fluorescent stars in the bedroom is based on personal choice. If there are special people such as the elderly, children, pregnant women, etc., it is recommended not to stick fluorescent stars.