The Impact of Space Travel on Astronauts' Immune Systems

A study published in Frontiers in Immunology suggests that reduced activity of immune-related genes in astronauts' blood during space travel may make them more susceptible to infections. The study found that approximately 100 immune-related genes were dialed down in outer space, possibly due to the decrease in gravitational force. This change in gene activity affects the immune system's response to pathogens, allowing viral and bacterial infections to surface. Understanding the vulnerability of astronauts to infections in space could improve safety measures for future missions and potentially benefit individuals with compromised immune systems on Earth.