Recent scientific breakthroughs have revealed a fundamental limit to human endurance, a metabolic ceiling that caps sustained calorie burning during prolonged physical activity. This limit, which is ...

Human life expectancy dramatically increased last century. Compared to babies born in 1900, those born at the turn of the 21st century could live, on average, three decades longer—with many living to ...

At every major competition, whether Olympic Games or world championships, the media and observers eagerly await the athletes' performances and, above all, the breaking of records, particularly in ...

The body’s cooling defenses fail at lower “wet bulb” temperatures than scientists had estimated. By Clayton Dalton Last month was the second-hottest September ever recorded; it came after the world’s ...

Of the 14 athletes studied in this research, ten competed in ultramarathons and ran up to about 7,000 miles over the course of the year. Ashley Cooper via Getty Images Ultra-endurance athletes can ...

Announcement from Climate Editor Zachary Goldfarb, Foreign Editor Douglas Jehl, Deputy Director of Photography Sandra Stevenson, Data Reporting Director Meghan Hoyer, Creative Director Greg Manifold ...

According to Roy Scranton, director of the University of Notre Dame's Environmental Humanities Initiative, the biggest problem we face with climate change isn't excessive carbon emissions or energy ...

Delhi is reeling from the most extreme heatwave India has ever seen. While the record-breaking maximum recorded temperature of 52.9°C has been called into question by India’s Meteorological Department ...