No ideal voice exists, but a natural voice does exist. For years our culture has valued low voices more than high voices, in both men and women. Many people, because of the prestige associated with having a low voice, deliberately alter their voice from their natural pitch. This can eventually cause vocal damage.

What is the main idea of the passage?

Using a natural voice is more important than using an ideal voice.
A low voice is preferred in men and women.
Using an unnaturally low voice hurts your throat.