Why does the thumb fingernail always grow faster than the other fingernails?

Is it a scientific reason?Why does the thumb fingernail always grow faster than the other fingernails?
I have never noticed. But our fingernails are made up primarily of dead cells, a horn-like material called keratin. Growth takes place in the martix, the hidden part of the nail under the cuticle. The older cells die and harden as they are pushed out. The matrix also includes the lunula, the whitish half-moon area at the base of the nail. Fingernails grow about 0.1 mm per day or 1-2 inches a year. Fingernails grow faster than toenails. Nails in men grow faster than in women. The nails on the dominant hand grow faster than on the other hand. In the summer nails grow faster than in winter.Why does the thumb fingernail always grow faster than the other fingernails?
it doesnt the middle fingernail grows the fastest
Haha that's funny my thumb nail grows slowest! And my ring finger grows fastest.





I guess even different fingers on the same person can have different growth rates.