If you look at your smartphone before going to bed, your sleep quality is less than half.

We usually sit in the office during the day and look at the computer all day. Also, it is the daily routine of modern people to go home after work and sleep while watching smartphones late at night. Because of this, the fatigue of our eyes is serious. So even if you sleep, your fatigue doesn't go away. The same goes for eye fatigue.

The effect of blue light-blocking glasses.

Sometimes people buy and use blue light blocking glasses to relieve any fatigue in their eyes. But it's cumbersome to wear every time and I'm not sure how effective it is. We will let you know if blue light blocking glasses are essential and effective.

What is blue light?

This blue light comes not only from sunlight, but also from computers, TVs, and smartphones that are frequently encountered in everyday life. And many people know that blue light is harmful, but it's actually wrong information. This is because blue light induces serotonin secretion and helps you sleep well by maintaining the biorhythm of day and night.

Why can't I look at my smartphone on my bed?

Blue light from nature is not bad. But it's a different story from blue light from TV or smartphone. There is no research on the dangers of blue light in humans yet, but artificially made blue light is not good.

Blue light lowers the quality of sleep.

Currently, there is no clear evidence that blue light from digital devices is the main cause of eye damage. However, it is true that exposure to blue light before sleeping reduces the quality of sleep. Exposure to blue light before bedtime suppresses a hormone called melatonin that induces sleep. This can soon cause sleep disorders.

If you still need to look at your phone before going to sleep?

The smartphone we use also has a function to control blue light. If you don't have this function, there are many apps that control blue light, so please use these apps.