A kayaker fishing on a river in Massachusetts saved two black labs that had fallen into the icy water.

While the initial shock of cold water can be intense, the long-term benefits make it a notable addition to health routines.

Scantily clad shrine parishioners throw icy cold water on himself during the annual cold-endurance festival at Kanda Myojin Shinto shrine in Tokyo, Jan. 18. (AP Photo) ...