electrolytes help people survive the heat

50C (122F) is a a hot day in Phoenix. It's only ever made it to 50C once in the last hundred years, in 1990. We lived in the northern part of the state at the time, but grandparents had a flight that day, so I was present for the record.

Most summers it doesn't get past 49C/120F. Parker and Lake Havasu (along the Colorado River) get slightly warmer. 125F is a hot day in Lake Havasu, 128F is the record. Bullhead City (of Airwolf Helicopter fame), gets up into the mid-120's too. Someone who used to live in Parker told me that the water pipes are very close to the surface, so all their showers were hot showers in the summer.

Poll: heat, humidity, or cold?