Marathon running is healthy for most—but it can reveal hidden heart issues. Here’s what experts say about strain, AFib, and ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. It's the original 100-miler, but that's not the only thing that makes this iconic trail race ...

Scientists provide proof that ultramarathon athletes’ red blood cells become less flexible after a long race, potentially ...

Add Yahoo as a preferred source to see more of our stories on Google. A Blood study finds ultra-endurance races can stiffen red blood cells and speed molecular aging, with stronger effects at 171 km. ...

Let’s travel back to the Paris Olympics—the women’s marathon event in particular. Twenty kilometers into the race, Sifan Hassan of the Netherlands was holding her pace and biding her time. “The moment ...

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a recent study. Although the duration and long-term implications of the ...

The 2024 Summer Olympics are in full swing. One of the marquee events is of course the marathon, a grueling test of fitness and athleticism. When it comes to endurance running, humans are among the ...

Professional ultramarathoner Tara Dower lived out of her Ford Transit van while training for last year’s Hardrock Hundred Mile Endurance Run. The ultramarathon includes 33,197 feet of elevation gain, ...

At 37, Ioana Barbu has gone from working in TV and podcasting to becoming the first person to complete all six Beyond the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Both running and swimming are great forms of cardio, engaging your muscles, boosting heart health, ...