One of the many challenges Tokyo needs to overcome as it prepares to host the next Summer Olympics is the deadly heat that has in recent weeks left Japan facing a health crisis.With two years to go until the 2020 Games, the island nation is experiencing one of its hottest summers on record, with the mercury hitting 40 C in central Tokyo on Monday for the first time in history.If similar temperatures strike during the July 24-Aug. 9 Olympics, the health of athletes, spectators and workers will be at risk during outdoor endurance events such as the marathon, race walking and cycling.According…READ FULL ARTICLE