Going to Mars carries risks, and not all medical emergencies will be able to be dealt with there. Is that, by itself, going to stop people from wanting to go t

Going to Mars carries risks, and not all medical emergencies will be able to be dealt with there. Is that, by itself, going to stop people from wanting to go there? Probably not. We could reasonably expect any humans going to Mars to bring a lot of medical equipment, supplies, and trained personnel with them. If you need an emergency organ transplant, though, you're probably out of luck. This isn't substantially different than the risks many people face on Earth, including tens of millions of people in the United States who lack medical insurance. Most people wouldn't accept those kinds of risks voluntarily, but if someone really wants to go to Mars they might decide the risks are acceptable. If a Mars colony becomes well established with a substantial population, then the risks become less, as the colony would have the infrastructure and full-time expert staff one would expect to find in a typical hospital, and a larger population would mean more potential blood and organ donors.