You don’t have to skate like Wayne Gretzky to reap the cardio benefits of ice hockey. No matter how good (or not so good) you are with the puck, hockey’s stop-and-go action gives you a killer calorie-torching, fat-burning interval workout. When you’re home for the holidays, round up a group of buddies and scout out the community rink for a pickup game. All you really need is a pair of skates, a stick and helmet, and your crew. Or, to make it a staple of your winter routine, join an adult league through Hockey North America: schooling beginner adults in hockey since 1980.