If you’re over 40, you may have noticed that it’s easier to gain weight -- and harder to lose it -- than it used to be. Changes in your activity level, eating habits, and hormones, and how your body stores fat all can play roles. But a few simple steps may help you slim down. Eat Your Fruits and Veggies Fill half your plate with them at every meal. Produce tends to have more nutrients and less fat and calories than meat, dairy products, or grains. And it may help you feel satisfied, even if you eat less. Fresh fruits, like apples and berries, are also great in place of high-fat or high-sugar snacks. Don't Skip Breakfast Experts recommend a healthy morning meal like oatmeal or whole wheat toast with fruit. It can help curb that mid-morning hunger that leads you to grab something unhealthy on-the-go or overeat at lunch. Small meals or snacks every few hours can keep your appetite in check all day long. Eat Less at Night If you get most of your daily calories at lunch (before 3 p.m....