Cold comfort

Exercising outdoors in winter can offer different health benefits from summer. Cold weather may improve endurance, and the lower temperatures may help transform some white fat, including belly fat, into calorie-burning brown fat. Winter is also an opportunity to take up seasonal sports and activities like fat biking, cross-country skiing, and running or hiking new trails. For safety, exercisers should bundle up, protect their extremities, use sunscreen, and drink enough water.