Why do nails grow fast?

Nail growth is fast, generally refers to relative to other people's nails, the individual nail growth speed is relatively fast. The main reasons for nail growth are: first, personal nutrient intake is more balanced, comprehensive, provides a relatively rich nutrient composition, so the nail growth speed is relatively fast. Second, because personal life is relatively comfortable, long-term physical labor is not carried out, time is not worn, so the nail looks to grow fast. Of course, nail growth faster, but also indirectly reflects the health of the nail is better. Long nails in the nail seam, easy to residue dirt and bacteria, should be regularly trimmed.