If the blood vessels in the human body are blocked, the nails will become rough and dull, or even black and yellow. If you have paid attention to the elderly around you, you will find that their nails are often unhealthy, because the blood vessels of the elderly are mostly blocked, because the blood vessels are aging and fragile, which is more likely to lead to blockage.
In fact, this problem has always been very common, but many people have not paid attention to it. The biggest cause of death of the elderly is cardiovascular and cerebrovascular diseases, which are several times more than the terrible diseases such as cancer combined.
Hypertension, hyperlipidemia and hyperglycemia are the main causes of cardiovascular and cerebrovascular diseases. Severe diabetics even have black nails. In fact, our blood vessels are supplied by liver blood. If liver blood deficiency's disease or blood vessel blockage occurs, this kind of nail blackening will occur.
Speaking of siltation, I think it's a trouble. In fact, blood vessel blockage can still be adjusted, such as making more efforts in diet. Corn is a good food, and it also contains unsaturated fatty acids, which contributes to the normal metabolism of fat and cholesterol in the body, softens blood vessels and improves blood vessel blockage.
In addition, apples, eggplant, tomatoes, kelp, garlic, tea, etc. all have the effect of clearing blood vessels. Of course, these can only play the role of conditioning, not the same as drugs, we must persist.