The human body is finite with limited capabilities.
After days of talks, North and South Korea have agreed to march together at the 2018 Winter Olympics under a unified flag.
A centuries-old practice called the Olympic Truce could ensure the North-South conflict won't spill over into the Olympic Games.
But the White House seems to say otherwise.
Russia won 33 medals at the 2014 Winter Games. Their performance makes them much different from athletes who've competed under the Olympic flag.
U.S. viewers will be able to watch live coverage of the Winter Olympics no matter what time zone they live in.