High Five Facts - Nails

The video provides five unique facts about nails, covering their composition, growth patterns, and protective functions. It explains that nails are made of dead cells, which is why cutting them is painless. The video also discusses the growth rates of fingernails and toenails, influenced by factors like hand dominance, gender, and vitamin D intake. It highlights the role of keratin in nails and their protective function against external injuries and bacteria. Additionally, the video delves into the history of nail polishing, tracing its origins to ancient China and its evolution over time.

Why does cutting nails not cause pain?

• Nails are made of dead cells.

• Nails have no nerve endings.

• Nails are too hard to feel pain.

• Nails are made of living cells.

Which fingernail grows the fastest?

• Ring fingernail

• Middle fingernail

• Index fingernail

• Thumbnail

What is keratin?

• A type of fat in the body

• A protein found in nails and hair

• A type of vitamin

• A mineral in bones

What was the significance of nail polish in ancient times?

• It was used for medical purposes.

• It indicated social status and rank.

• It was used to protect nails from damage.

• It was a form of artistic expression.

What is the primary function of the cuticle?

• To make nails look shiny

• To prevent germs from entering the body

• To protect the nail from damage

• To enhance nail growth