What if you could lose weight just by walking around the office? James A. Levine directs the lab at Mayo Clinic that studies “non-exercise activity thermogenesis” or NEAT. NEAT involves the energy that we expend while performing the activities of our everyday life, apart from formal exercise. Levine found that people can comfortably work at computers while walking on a treadmill going about 1 mile per hour. At that pace, they can burn 100 calories every hour, enough to lose 50 pounds in a year. Although such treadmill workstations are not commercially available, many people have fashioned them and put their plans on the Web. Here is one example: http://www.treadmill-desk.com/.