A NASA astronaut, Mike Fincke, had a serious health problem on the International Space Station in January. He suddenly could not speak for about 20 minutes while having dinner. This incident happened during his fourth mission and left him feeling upset but not in pain.

NASA decided to return him and his team to Earth one month early as a result of this event. The early return meant that only three astronauts remained at the space station for a period of time.

Experts say that health risks in space, such as changes in blood flow, can cause medical emergencies. NASA may need to include doctors on future long missions to help with possible health issues.