Analia Gibson delivers mail to the Double Down Saloon on Tuesday, June 23, 2015, in Las Vegas. More than 1,000 carriers face the heat as they deliver mail for 6-8 hours a day. (James Tensuan/Las V …

Analia Gibson delivers mail to the Double Down Saloon on Tuesday, June 23, 2015, in Las Vegas. More than 1,000 carriers face the heat as they deliver mail for 6-8 hours a day. (James Tensuan/Las Vegas Review-Journal) Follow James Tensuan on Twitter @jtensuan