decompression sickness

The four crew members spent two days “pre-breathing” to prevent becoming seriously ill from decompression sickness, known as getting “the bends”, as the pressure changed.

If a diver returns to the surface too quickly, the nitrogen bubbles don't have time to dissipate - leading to a dangerous condition known as decompression sickness, also known as the bends.

The incident, which occurred at 23:28 BST, led some people to believe that a real astronaut was suffering from decompression sickness in space.

Mr. Small died of decompression sickness before he could be transported to a hospital.

Whales have been observed suffering from decompression sickness, behavioural changes and strandings after being exposed to noise pollution from ships, oil and gas surveying and construction.