As the saying goes, "three inches long, four inches worry-free", in fact, it is a pillow. We know that some proverbs are reasonable, but some are not necessarily correct. Let's see if this proverb has scientific basis.

What is "three inches long life, four inches worry-free"?

This sentence looks simple and its surface meaning is understandable. It means that sleeping on a three-inch pillow can prolong life, and a four-inch pillow is the most comfortable and happy state when people lie down. But is this statement really correct? If it's true, I don't want to live forever. I slept on a three-inch pillow. How happy I am. This is probably what many people are willing to do. I can also lie down and play, and live a long life.

In fact, the saying "three inches and four inches" refers to the height of the pillow. We know that one inch is 3.3 cm, three inches is 9.9 cm, about 10 cm, four inches is 13.2 cm, about 13 cm. This is equivalent to sleeping on a pillow ten centimeters high, which helps us live longer.

So is this height pillow really good for our health?

Actually, we didn't. We know that the pillow is too high, which is not good for our cervical spine. If the cervical spine is in a state of leaning forward for a long time, the pressure on the cervical spine will increase. Originally, our cervical spine should be normal, but now it will lead to the cervical spine leaning forward, destroying its original normal angle, and if it is pressed for a long time, it will not only change the angle, but also oppress the cervical nerve.

So I don't know if three inches is long, but the height of three inches will hurt our cervical spine. For us now, it's almost13cm to lie down and play with a mobile phone for four inches, but it will be very uncomfortable for a long time. I wonder if everyone is like this. Maybe you need to change your lying position after playing for a while. If you are lying on your side, the angle of the cervical vertebra is equivalent to hanging, which is unacceptable for a long time. It's not like saying that four inches can keep you comfortable.

Therefore, proverbs are not always right. It depends on the individual. Maybe some people like high pillows, while others like low pillows. But for your own health, it is not good to have a pillow too high or too low.

The best pillow height should be six to nine centimeters, which is an acceptable distance and will not cause particularly great damage to our cervical spine. Sleep quality will not affect. You know, only by fully ensuring your sleep quality, you will have a spirit the next day, otherwise poor sleep for a long time will affect detoxification, resulting in the toxins in the body not being discharged in time.

So sleep is very important, but the choice of pillow is also very important if you want to sleep well. In addition to the height of the pillow, people should be comfortable, and the hardness of the pillow should be slightly harder. If it is too soft, it may be comfortable at first, but it will be bad for blood circulation after a long time. So do you know the choice of pillows?

Conclusion: We should have our own judgment about what the proverb says, and we can't think that what the proverb says is right. Although there is some truth in some statements, such as that hunger really makes people live longer and satiety makes people sick, some of them have not been verified by modern technology, so we should know clearly what we are doing. Although keeping in good health is good for the body, we should also develop a correct way of keeping in good health instead of believing what others say.