Nails grow faster in young people than in older ones, while nails grow fastest in pregnant women.
Male nails grow faster than female nails.
In warm climates, nails grow faster than, for example, in winter.
Nails grow at a rate of 0.1 mm per day (or 1 cm per 100 days).
Toenails are about half as thick as fingernails.
The fastest nail grows on the middle finger. And the nail on the middle finger will grow faster on your dominant hand (left-left and vice versa). It is not known why it is, but the longer the finger, the faster the nail will grow on it and the shorter on the shorter fingers!
In ancient Egypt, the pharaoh’s manicurist was buried in a separate, special tomb with great respect and Honour.
In the middle Ages, Chinese women glued pieces of rice paper to their nails, artificially extending them as they thought – the longer the nails, the taller the man in society.
17th-century eastern women injected plant-colour in the nail root, resulting in the nails grow coloured.
In 1917, the first nail polishes appeared in pink colour and by 1920 coloured nail polishes could be bought in pharmacies.
During the Second World War, there was a great shortage of chemical raw materials in the production of nail polishes, so one skilful pharmacist invented a new type of nail polish. A mixed fused film with paint.