High Five Facts - Nails Choca Esos Cinco - Uñas

The video presents five intriguing facts about nails. It starts by explaining that nails are made of dead cells, which is why cutting them is painless. The growth rate of nails varies, with fingernails growing faster than toenails, and factors like age and season affecting growth. Nails are composed of keratin, a resilient material also found in animal hooves and feathers. They serve a protective role for fingertips and prevent bacteria from entering the body. The history of nail polish dates back to 3000 BC in China, where it was used to signify social status. The video concludes with a brief farewell.

What new insight or understanding did you gain from this video?