Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to use your smart phone to improve your health [title] Track your daily food intake. [step] One of the easiest ways to improve your health with a smartphone is to track your daily food intake. Writing down what you eat helps you identify unhealthy eating habits, become aware of your daily nutritional intake, and makes you accountable for what you eat.

Ending1: Tracking how much junk food you eat can make it easier for you to replace junk foods with healthy, healthier alternatives. [substeps] Studies have shown that people with eating disorders, such as depression, are best at counting calories than people who don't. Ending2: Many apps, such as myfitnesspal and mynetdiary, will allow you to input foods you eat. The app will compile a daily total of calories, fat, carbs, sugar, protein, and other nutrients. Ending3: [substeps] Get a metric bar of what you eat and how many calories you eat per day. Search for your food charts online to learn if you currently eat everything. Ending4: You can also use a smart phone to help you track and plan meals you want to make. [substeps] To write down what you eat every day, write down whenever you eat something bad or in the past, and report it to your doctor.

Answer format: ending1/ending2/ending3/ending4