Plus, how elite athletes respond to extreme heat
 
 
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What the new data says about how long the average hiker takes, what they drink, and how tired they get
 
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A wave of psychotherapists are treating patients by running with them
 
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At the 2016 world championships in Qatar, cyclists swallowed thermometer pills before competing. Here’s what scientists learned.
 
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MORE FITNESS
 
 
 
 
Motivation Is for Suckers
 
 
 
 
 
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GEAR DEALS
 
From REI
Save 32 percent off the ExOfficio Give-N-Go sport boxer briefs. →
 
 
From REI
Save 25 percent off the Osprey Duro Solo hydration waistpack. →
 
 
 
 
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