In this Thursday, Sept. 21, 2017 photo, Ryan Curtis, associate director of athlete performance and safety for UConn's Korey Stringer Institute, runs on a treadmill at the institute's Mission Heat Lab in Storrs, Conn. The new $700,000 lab allows scientists to monitor how athletes, soldiers and others respond to temperatures of up to 110 degrees and 90 percent humidity. (AP Photo/Pat Eaton-Robb)
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