1. Keratin is a type of protein that forms the cells that make up the tissue in nails and other parts of your body.
  2. The part you can see in nails is consists of dead cells. That’s why it doesn’t hurt to cut your nails.
  3. Tiny blood vessels called capillaries sits under the nail bed .
  4. Blood flowing through the capillaries helps nails grow and gives them their pinkish color.
  5. Layer of skin under the nails is called the dermis.
  6. Dermis has sensory nerve endings. These send a signal to your brain when pressure is applied to your nails.
  7. Although the myth about nails growing after death isn’t true.
  8. After someone dies their skin dehydrates and shrinks making it look like their nails grew.
  9. Nails grow faster in summer than in winter.
  10. Stress can cause your nails to grow more slowly or even temporarily stop growing.