Subject: Re: New Scientist Question From: Thomas G Brennan <g_brennantg(at)TITAN.SFASU.EDU> Date: Wed, 21 Nov 2001 10:16:56 -0600Another issue for hearing aid users is that yawning causes problems with their aids because of this tube opening. There are, of course, shape changes to the external canal but those are more often than not fairly minimal. This does differ in the case of people with tmj, faulse teeth which are not in, etc. Tom Tom Brennan, CCC-A/SLP, RHD web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html web master http://titan.sfasu.edu/~f_freemanfj/speechscience.html web master http://titan.sfasu.edu/~f_freemanfj/fluency.html