How European teams are trying to beat the heat

The heat hits immediately. You think you know what's coming, but it's still a shock to the system. Sweat appears almost instantly. The first deep breath is like sucking in hot air that feels like it's being pumped out of a hair dryer.

This is the reality for some of the players at this summer's World Cup in North America.

In a specially built lab on the south coast of England, Precision Fuel and Hydration can recreate the conditions teams are facing at some venues during the tournament.