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.

At an average age of 70, these women divers in South Korea still forage in the sea up to 10 hours a day and spend more than half of that time underwater.

The simulation allowed the researchers to carry out the study without having untrained, and possibly non-swimming, older women try to dive in the open ocean.

These Korean women divers have evolved traits to survive in frigid water From high-altitude climbers to divers who can fish without scuba gear, scientists are finding new ways that human bodies ...