Even if it took longer to rise, decompression sickness would have been a factor.
Such a practice is common in order for the astronauts to avoid getting decompression sickness.
This is also known as decompression sickness or the Bends.
However, he never suffered a classic case of decompression sickness in his career.
The death of several divers from decompression sickness put an end to work at the site in the early 20th century.
It is thought that a system such as this would allow for diving without risk of decompression sickness.
But many workers became ill and died while working the submarine, probably from the effects of decompression sickness.
At the heights involved, low pressure would cause decompression sickness (see space exposure).
Medical staff may also breathe oxygen to reduce the risk of decompression sickness.
Decompression sickness can be prevented by decreasing the pressure slowly.