Nail moons are found at the base of the nails. They are also known as lunule . Small or no moons may indicate low metabolism while large moons may indicate an active metalbolism. These nail moons disappear with age. The average growth rate a day is 0.1 mm .
Nails grow fastest on the more active hand.
Fingernails grow at least 2 times faster than toenails. Young people grow nails at a faster rate. Avoid harsh metal files. File every nail tip from the corner to center but don't file deep into the corners. Leave the cuticle alone .