I posted this in General Cycling Discussions, but did not get an answer (some on hearing aids, but I'm not ready for those yet), so I though I'd try it here.

Does anyone know if the constant rush of wind noise has any detrimental effects on hearing?
What kind of decibel level are we listing to when pedaling at a decent clip?
I ask because my father, a dentist, has nerve damage to his ears from the constant whine of the drill.

--A