The Nature Index tracks primary research articles from 145 natural-science and health-science journals, chosen based on reputation by an independent group of researchers. The Nature Index provides ...

When elites like Kellyn Taylor—who trains in Flagstaff, Arizona—and Emma Coburn—who trains in Crested Butte, Colorado—work out at elevations around 6,000 to 8,000 feet above sea level, then you know ...

A common heart feature long thought to have negligible effects on human health and performance may be problematic at high altitude. That's a key finding from a study that looked at the effects of a ...

If you’re racing at high altitude, your performance will suffer. (How high is “high”? Opinions differ, and it also depends on your physiology, but there’s evidence that elevations as low as 1,900 feet ...

We’ve known for well over a century that low blood oxygen causes altitude sickness. The origin of this idea has long been attributed to French researcher Paul Bert. But it’s really Bert’s benefactor, ...

The problems inherent in traversing, fighting, and surviving at altitude are as true today as they were almost 2,000 years ago. This is evident by the quotation from Tookim, a Chinese official ...

I could have saved myself the cost of a trip to the coast. I live at an elevation of 3,500 feet, and last year I traveled to Victoria, British Columbia, to run my Boston Marathon qualifying race. As ...

(CBS/AP) What effect does high altitude have on the human body? To find out, a team of American scientists and researchers flew to Mount Everest on Friday and set up a laboratory at the base of the ...

BETHESDA, MD. – Sildenafil (Viagra) significantly improved the cardiovascular and exercise performance measures of trained cyclists at high altitude, mostly because the drug helped some participants ...

BETHESDA, Md. (May 18, 2009) Pregnant women who are indigenous to the Andes Mountains deliver more blood and oxygen to their fetuses at high altitude than do women of European descent. The study helps ...