A mission to Mars will be aimed at putting human boots on the Martian ground, but the mission will only be a success if the human in those boots is healthy, both physically and mentally, after their long trip through interplanetary space. Mars presents new challenges to astronaut wellness that we've never faced before in on our short jaunts to the moon or our longer stays in low Earth orbit aboard the International Space Station. This story is Part 3 of Quirks & Quarks' Pathway to Mars series. Each instalment looks at one part of the huge challenges inherent in the most ambitious journey of exploration we've ever attempted - a human mission to Mars.

From the Curio.ca streaming audio-visual collection.