What is blue light? How is blue light harmful to the body?

Many people wonder what blue light is? How does it affect our bodies? The following article will answer your questions.

What is blue light?

Blue light is a type of light that is continuously emitted from devices such as computer screens, televisions, phones, tablets, and even LED lights. High-energy blue light helps increase the visibility of content when used outdoors. However, when you are exposed to the screen at night, blue light is extremely dangerous.

Don't use your phone at night.

Blue light contains a lot of energy in the narrow band from 415 - 455nm, which is more harmful to the eyes, in this case the lens and retina of the eye. In the optical spectrum, the green bands of blue light carry more energy and can pass straight through your eyes - causing nearsightedness and macular degeneration.

When exposed to blue light a lot and for a long time, people often suffer from eye diseases such as: Computer vision syndrome and macular degeneration.

Many people have a very harmful habit of turning off all the lights and going to bed with their phones in hand to watch something to help them fall asleep. This is very harmful to the eyes and body if it continues for a long time.

Some of the most specific harmful effects of blue light

Not only does it affect the eyes, it also affects the biological rhythm and the entire body as follows:

Blue light inhibits the body's production of melatonin.

Melatonin is a hormone that helps the human body fall asleep quickly. If the brain does not produce enough melatonin due to exposure to blue light from electronic devices in the evening, you will find it difficult to fall asleep and not feel sleepy. Avoiding using TV, phone, tablet 1 hour before going to bed is a good solution for you to sleep well.

Affects the body's circadian rhythm

Our body’s circadian rhythm is a rhythm that responds to light during the day and night, affecting our physical, mental, and behavioral changes over a 24-hour cycle. It also affects our body’s sleep-wake cycle, hormone production, and body temperature regulation. Blue light is one of the biggest influences on our circadian rhythms in today’s world. It makes your body feel tired and out of balance.

Blue light causes bad stimulation

During the day, blue light has no negative effects because even sunlight has blue light, but at night it can disrupt your relaxation and rest by attracting, making you focus, pay too much attention, causing stimulation, and changing your mood.

Blue light causes macular degeneration

Long-term exposure to large amounts of blue light can cause age-related macular degeneration.

Solution with fix:

The best solution is to minimize exposure to devices such as computers, phones, and televisions, especially at night and before going to bed.

Or you can also buy screen protectors for TVs, phones, and choose night mode for computers and phones.

Use glasses that can filter blue light for nearsighted people or normal people (0 degree glasses)..

Blue light contains a lot of energy in the narrow band from 415 - 455nm, which is more harmful to the eyes, in this case the lens and retina of the eye. In the optical spectrum, the green bands of blue light carry more energy and can pass straight through your eyes - causing nearsightedness and macular degeneration.

When exposed to blue light a lot and for a long time, people often suffer from eye diseases such as: Computer vision syndrome and macular degeneration.