Forty pounds in four months? Three dress sizes in three weeks? Two inches in 20 days? These are not the numbers you should be thinking about when it comes to a healthier “you” in the new year. If you want to get results, you need to set realistic goals and focus not on short-term gains, but a lifestyle change. To get started, here are some time-tested numbers to keep in mind to help in your quest. Instead of targeting an ideal “size,” go forth and shed bad habits and adopt a new lifestyle for lasting, positive change.