Survival expert Cody Lundin shares practical wilderness wisdom for maintaining your core temperature at 98.6°--the ultimate guide to staying alive whether you're in the backcountry, backyard, or stranded on highways. In his entertaining and informative style, Cody stresses that a human can live without food for weeks and without water for about three days or so. But if the body's core temperature dips much below or above the 98.6 degree mark, a person can literally die within hours. It is a concept that many don't take seriously or even consider, but knowing what to do to maintain a safe core temperature when lost in a blizzard or in the desert could save your life. Lundin delivers the message with wit, rebellious humor, and plenty of backcountry expertise. Watch naturalist Cody Lundin on "Dual Survival" as he uses many of the same skills and techniques taught in his book: 98.6 Degrees: The Art of Keeping Your Ass Alive.