Decompression, whether accidental (due to damage of the spacecraft) or
intentional (as in the use of the pressure suit outside the capsule),
carries the risk of bends if the inert gases dissolved in the tissues
and body fluids come out of solution. The magnitude of this risk is
determined to a very considerable extent by—
(1) Individual susceptibility
(2) The extent to which the nitrogen (or other inert gas)
concentrations of tissues and body fluids have been reduced
(3) The magnitude and rate of the inert-gas, partial pressure change
on decompression