Do it better: Short bursts of intense activity burn more calories—and up to 36% more fat, according to a study published in the Journal of Applied Physiology. Strolling around the mall or a park for an hour works off about 150 calories; pick up the pace 1 minute out of every 5 to burn over one-third more calories (try a similar method if you bike). Swimmers can switch from freestyle or breaststroke to a more challenging crawl every few laps, or just go a little faster. Give these quick calorie-burning interval workouts a try.
Katie’s weight has been a challenge her entire life. But after having two boys, she reached an all-time high: 253 pounds. That was when she decided to make a change, but it didn’t happen right away. For the next three years, she dieted and bounced between losing and gaining 50 pounds. Her real weight loss journey began in 2009, when she used calorie counting and running to take off 125 pounds. Today, she writes about maintaining that loss, running, being a mother, and managing a bipolar diagnosis. Visit the blog.