Daniel Ssozi News Today

A change of scenery can restore one's outlook, but for some precancerous cells, a journey from the caves of the bone marrow to the sunny climes of the skin can trigger genetic changes that are a harbinger of cancer, according to a new study by researchers at Dana-Farber Cancer Institute, Brigham and Women's Hospital, and the Broad Institute of MIT and Harvard.

A mile into the woods of the Wendell State Forest, the ground was covered in snow, and winding trails wrapped around iced-over streams and ponds. There was little sign of human activity.But, with skis beneath her, Ginny Graves of Pelham darted down a...