Is there a company / organization that surveys what % of people m/f bite their fingernails at different ages ?

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Is there a company / organization that surveys what % of people m/f bite their fingernails at different ages ?

What is the principle use of this information ? How often is this survey conducted ? And on how many individuals ? What major trends have been detected, if any ? What are some of the stranger explanations people give to explain why they have this habit ? Do any animals have a related behavior ?

2007-10-05 04:32:06 · 1 answers · asked by cityquestioner 2 in Social Science ➔ Psychology

1 answers

I don't know but I know that it is an obsessive/compulsive
disorder

2007-10-05 04:54:00 · answer #1 · answered by Ink Corporate 7 · 0⤊ 0⤋