comprehensive -WSS

comprehensive

author：fashion 2025-10-02 11:09:10 - browse：31

Fingernails sometimes fall off when they’re damaged — like if they get stuck in a car door.

That has to do with what’s known as the matrix, the spot at the bottom of your nail that’s responsible for growing your nail. Nails themselves are actually little plates of proteins called keratin. All of those proteins are connected, which is what makes one continuous nail.

When your finger experiences a shock, like getting stuck in a car door, the matrix temporarily pauses the growth of the fingernail. That pause means the proteins are no longer connected. So the new part of the nail that starts growing isn’t connected to the old part that you could already see — which is why your fingernail falls off.

We investigate the strange science of fingernails in the latest episode of our video series “Boddities.”

Newsletters

Sign up for Morning Rounds

Your daily dose of news in health and medicine.

Please enter a valid email address. Privacy Policy

Related: Watch: Episode 12: What would happen to your eyes if you looked at the solar eclipse?

Related: Watch: Episode 11: Why do bug bites cause bumps on the skin?

Related: Watch: Episode 10: What happens when skin gets sunburned?

Related: Watch: Episode 9: Why can’t teeth heal themselves?

Related: Episode 8: What makes metabolism fast?

Previous article： New air purifier tech could be key to improving indoor air quality
Next article： 7 more heat

WSS

More hospitals are billing patients as online messages surge

Asa Hutchinson previews new plan to reform federal law enforcement if elected in 2024

EF3 tornado rips through North Carolina amid extreme weather nationwide

Stanford president's case begs question: Who takes blame?

ER docs worry over extreme heat as a 'mass casualty event'

Study identifies new proteins linked to dementia risk 25 years later

Wikipedia

comprehensive

Sign up for Morning Rounds

Related: Watch: Episode 12: What would happen to your eyes if you looked at the solar eclipse?

Related: Watch: Episode 11: Why do bug bites cause bumps on the skin?

Related: Watch: Episode 10: What happens when skin gets sunburned?

Related: Watch: Episode 9: Why can’t teeth heal themselves?

Related: Episode 8: What makes metabolism fast?

leisure time

How to save PrEP access — and even expand it

Search resumes for 2 missing children washed away with mom in deadly Pennsylvania flash flood

Medical records are filled with copy

Why Congress must ban federal programs from using QALYs

Malaria cases in Florida and Texas: Here’s what you need to know

Twill hunts for pharma partner to market its depression app

Over 800 arrested across France in 3rd night of riots after fatal police shooting of teen

15 die by electrocution after transformer explodes in northern India

Dobbs anniversary: the lost opportunity of abortion as health care

More hospitals are billing patients as online messages surge

focus

House passes resolution saying Israel isn't a 'racist or apartheid state'

Tocagen's brain cancer gene therapy trial continues. Investors worry

What we know about the American soldier detained in North Korea

Asa Hutchinson previews new plan to reform federal law enforcement if elected in 2024

Wife of Gilgo Beach murder suspect files for divorce, court filing shows

Johnson & Johnson sues to stop Medicare negotiation

knowledge

Wikipedia

knowledge

hotspot