In one sentence, describe what the following article is about:

Mental health is an important part of feeling fit and beautifully healthy. It can be hard to have a positive body image when we are inundated with pictures of very thin actresses and models. But there are ways you can learn to feel good about yourself, no matter your shape. A positive body image will help you stay motivated to eat healthy and work out.    Find something you like about your looks and make that your focus. For example, if you have been running a lot lately, compliment yourself on how strong your legs are looking. Avoid negativity. Try not to criticize yourself. It's fine to want to make changes, but try to give yourself encouragement, rather than tearing yourself down. For example, instead of feeling bad about eating a bag of cookies, say to yourself, "I guess now I have extra motivation to do 20 extra sit-ups tomorrow!" Body image is all about how you feel about how you look. So try to focus on positive feelings. Focus on the good things your body does for you, like give you the energy to play with your dog. When you feel healthy, you will also feel more fit and beautiful. Don't worry about the numbers on the scale. Instead, focus on how strong you feel and how your clothes fit. Base your personal fitness assessment on your energy levels and overall health, not on your weight. It can be tempting to judge yourself based on how other people look. But experts say that comparing yourself to others can be damaging. For instance, it can lower your sense of self-worth. That can lead to lower self-esteem, and lower energy levels.  Make your own goals. Trying to look like someone else isn't going to help you achieve your goals. Instead, assess your fitness level by noting if you've made improvements and if you can see and feel a difference in your body. Think about your body frame size. Everyone is different. Some people have small frames, while others have a large frame. Yours might be medium. You can figure out your frame size by measuring the circumference of your wrist and consulting a height chart. Remember, if you have a large frame, you will have different weight goals than someone who is naturally smaller. Try keeping a daily journal, where you record positive statements about yourself. You can use this journal to track your exercise and diet, or you can just write down happy, self-affirming thoughts to keep you motivated.

Summary:
Build a positive body image. Focus on how you feel. Don't compare yourself to others.