Nails are a good window to know a person's health. Healthy nails should have a bright surface and a hard texture.
When a person's nails are sunken, spoon-shaped and rough, it suggests that this person is likely to suffer from iron deficiency anemia;
When a person's nails are weak, it means that this person is malnourished;
When a person's nails are pale and unpretentious, it means that this person is anemic;
When a person's nails appear horizontal stripes, then this person should be alert to the attack of myocardial infarction;
When a person's nails are blue and purple, it means that this person has cardiovascular disease;
When a person's nails appear striped disorder with dark brown, it means dehydration or kidney deficiency;
When a person's nails are arched from the root to the end, like drums, it means that this person has diseases of respiratory system or cardiovascular system.