Children's fingernails grow one millimeter a week. Toenails grow one-quarter as fast as fingernails - one millimeter a month. Pianists' and typists' fingernails grow faster than others'. Fingernail growth is fastest in November, slowest in July, and less rapid at night. The first and fifth digits grow more slowly; in severe cold weather, fingernails grow more slowly. From age 30 until 80, fingernail growth slows by 50 percent.
David Shields - The thing about life is that one day you'll be dead