Why do some people have crescents on their nails, while others do not? What's wrong with vertical stripes? The truth is here

Why do some people have crescents on their nails, while others do not? What's wrong with vertical stripes? The truth is here

Many people believe that nails are the mirror of health. For example, having fewer crescents indicates unhealthy health, having long vertical lines and white spots is a lack of calcium, and having long inverted spines is definitely a lack of vitamins...