The first is that there are vertical stripes on the nails, which means that the body feels mental pressure. Generally speaking, the greater the pressure, the more vertical stripes under his nails. In other words, the more people think about it, the more vertical lines there will be on their nails. When I was a child, there were few vertical stripes on my fingernails. When I grew up, I began to grow vertical stripes.
I started to grow vertical stripes on my hands when he 16 died. Since his death, I have been slowly bearing some memories and some pressure from my own home or other places, which makes me think more and more. Up to now, there are more and more vertical stripes on my nails.
Of course, this vertical stripe is not too obvious, but as long as you observe it carefully, you will definitely understand which vertical stripe it refers to.
The second is to look at the speed of blood circulation on the nails. Nails are transparent to our flesh and blood, so we can see that the flesh and blood are protected above the nail cover, and the health of these flesh and blood can be seen through the nail cover.
The method is very simple, that is, just break off your fingernails. If you see blood rushing to the broken place immediately, then such a speed of blood return is a healthy constitution.
However, if it takes a long time to return blood, in this case, we should consider whether anemia may occur, because the blood circulation is slow, reflecting the slow blood flow of the whole hand.
Of course, in the second test, the cold weather is also a reason, and this should also be taken into account when conducting real tests.