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Dear Alina,

Thanks for your letter. I'm not happy to hear that you aren't well. Now, I will give you some advice on how to keep fit and stay healthy. At first, you should have a balanced diet. Calorie is a unit of energy that helps us to do our daily activities. We get calories from the food we eat. If you eat too many, you can get fat. If you don't eat enough, you feel tired and weak. Someone told me: "You can count your calories. Then think about how much exercise you do. Eat less junk food, and exercise more. You should be fine." Second, you should try to rest your eyes. Also, try the 20-20-20 rule: every 20 minutes look away about 20 feet for 20 seconds. Next, you should spend less time playing computer games. Many of us love computer games, but we should spend less time playing them. Limit your time to just one hour, two or three days a week, or less. Finally, you should wear a hat when you go outside to avoid getting sunburnt.

I hope my advice will be useful for you. Write to me soon.

Love.

Orvol