Samuel Cheuvront News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Already have an account? Photo: Getty Images Runners don’t like heat. When the mercury rises, so too do many of us — early in the morning, that is, in an effort to get in our training before the heat sets in. Increasingly it seems, even rising before dawn is a futile effort to beat the heat. But, hot or not, we’ll get out in it, sweat, suffer and complain. Sometimes, however, you have to take more dramatic action. Last weekend, when the Pacific Northwest was swept by a heat wave that produced conditions more commonly associated with Yuma, Arizona, than Eugene, Oregon, the U.S. Olymp...

When researchers from Nike were plotting the details of their Breaking2 marathon project in 2017, one of the variables they considered was start time. The usual early-morning starts give you cool air that gradually heats up—but an evening start could give you cool air that gradually gets even cooler as the runners heat up. They eventually stuck with the morning start, mostly to avoid practical problems like figuring out what runners should eat all day before an evening marathon. But the discussion made me realize that there’s more to race temperatures than what the thermometer reads when ...