Why do some people's fingernails have grooves?

Subject: Why do some people's fingernails have grooves?

Date: Thu Apr 17 14:42:57 1997
Posted by Markus Engelhardt
Grade level: nonaligned
School: No school entered.
City: Colorado Springs State/Province: CO
Country: USA
Area of science: Anatomy
ID: 861306177.An

Message:

Is that because these people lack a certain mineral or something?

Re: Why do some people's fingernails have grooves?

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