Uploaded August 2014 | Updated September 2026, 3 hours ago

---

Researchers have a good idea what causes immune system changes on Earth— things like stress, inadequate sleep and improper nutrition. New research suggests that spaceflight may temporarily alter the immune system of crew members flying long duration missions aboard the ISS.

Source: NASA

Read more: laboratoryequipment.com/videos/2014/08/immune-system-dazed-confused-during-spaceflight