Every kid who grew up watching movies like Star Wars and Doctor Who would want to go to space. Perhaps it isn't easy at all, especially considering that the astronauts are being tested for so may things and then cherry-picked. There's the 3G test that every astronaut has to go through to see how much it affects them, as well as the lot you have mentioned.

In all, I think the risks are well worth the rewards. Through space exploration, we've known so much about who we are as a race.
Simple and fun to read, this one.
Well done.