Research has shown that time in space can increase the risk of cancer and trigger gene mutations.

But a new study has found that one crucial part of the human body remains unaffected by zero-gravity.

Living in space didn’t alter an astronaut’s levels of B-cell immunity — the white blood cells that create antibodies to fight off infections.

B-cell levels need to be maintained in order to help astronauts fight off disease-causing viruses and bacteria.

The discovery is a welcomed development especially since previous research has found that space travel seriously confuses the immune system.

Some cells weaken, while others work overtime and both weaken the body’s ability to effectively fight infection.

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