Changing ingrained habits is one of the most difficult things to do. And the changes probably feel most overwhelming in the eating arena. But relax. We don’t expect you to institute them all at once. Just doing one new thing at a time—switching from 2 percent milk to skim, substituting a salmon steak for a sirloin, or changing the brand of cereal you eat every morning—will eventually add up to big benefits. Within a few weeks that initial change that felt so strange will feel as familiar as your own bed To help you get into the new habits we’ve recommended in a relatively painless manner, we’ve developed a three-month, week-by-week Plan starting on page 206 that introduces a few manageable changes at a time. By the end of 12 weeks you’ll find thePlan has become a regular part of your life.