The Haenyeo women who dive deep into the East China Sea to harvest sea urchins and shellfish spend the most time underwater of any humans ever studied — one to five hours a day, researchers report ...

A couple of years ago, Melissa Ilardo found herself aboard a motorboat traversing the ocean around Jeju Island, which sits some 50 or 60 miles off the coast of South Korea. Before the vessel had even ...

From high-altitude climbers to divers who can fish without scuba gear, scientists are finding new ways that human bodies may be genetically adapting to environmental extremes. Many women who grow up ...