[DoctorBeaver (OP)]

If the air is thinner, the pressure is reduced - yes? So if our internal pressure remains constant, are we more likely to pass wind?

[dentstudent]

If you have an upside-down glass jar with a balloon covering the open end to represent the non-pressure changing human body in the system, then put it in a vacuum chamber, i would expect the balloon to begin bulging away from the jar as the external vacuum increased. So, in principle, i would agree. Incidentaly, on hiking trips I've made to 3000m, there was a great deal more wind, but it might have been the previous nights beer!

[DoctorBeaver (OP)]

 [:0]

[Karen W.]

LOL LOL!