In a message dated 5/9/99 3:34:49 PM Central Daylight Time, [log in to unmask] writes: << disappeared almost immediately after stopping the climbing simulation. My dexterity and smelling ability change with the change in pressure also. >> Will, You might find an interested party at the USAF School of aerospace Medicine (USAF SAM). The following used to be correct: USAF SAM Brooks AFB, San Antonio, TX?????? 1-210-536-2844 USAFSAM General ph number 1-210-536-1110 Brooks AFB Base operator Number Regards, WHH