I WONDER - How Fast Do Nails Grow?

The video tutorial explores the growth rates of fingernails and toenails, noting that fingernails grow faster than toenails. It highlights factors affecting nail growth, such as the dominant hand, gender, seasons, and vitamin D intake. The tutorial also discusses variations in growth rates among different nails, with the thumbnail growing the slowest and the middle finger nail the fastest. It concludes with a mention of the Guinness World Record for the longest fingernails, held by Diana Armstrong.

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