Question

Nails are dead but they grow.Explain

Answer 1

The root of the nail is called matrix  which constantly makes new cells. These new cells force the old ones to get packed together and pushed up through the skin. By the time the nail pokes out of the skin (where you can see it), those cells are dead.

Answer 2

Your visible nails are dead

Nails start growing under your skin. As new cells grow, they push old ones through your skin. The part you can see consists of dead cells. That's why it doesn't hurt to cut your nails.