Endurance athletes, particularly trail and ultrarunners, participate in a sport that demands both physical capacity and mental resilience. Conquering distances over challenging terrains requires a ...

In 2017, world-famous distance runner, Ron Hill, ended his record of 52 years and 39 days of consecutive running by taking a day’s rest after feeling unwell during one of his runs. Hill writes in his ...

Gray's Anatomy (the book, not the TV show) was the first comprehensive attempt to map evolved human physiological adaptations — the organs of the human body. Imagine a similar effort to map human ...

The Haenyeo, a group of all-female divers from the Korean island of Jeju, are renowned for their ability to dive in frigid waters without the aid of breathing equipment — even while pregnant. A study ...