Gua sha is a Chinese medicine technique that involves massaging the face with a small, smooth-edged stone. Here, experts offers tips to on the best ways to use one.

Gua sha is a Chinese medicine technique that involves massaging the face with a small, smooth-edged stone. Here, experts offers tips to on the best ways to use one.

Ancient human relatives crafted sharp-edged tools out of animal bones around 1.5 million years ago, researchers say. Discoveries at Tanzania’s Olduvai Gorge, a famous East African fossil ...