During your teenage years, it is important to give your body the energy that it needs. If you skip meals, you dont get enough calories that your body need , and then you feel tired. By the way ,“calories”is just another word which is used to mean energy .Teenage girls need about 2200 calories a day and boys need a bit more -doctors suggest 2800 for teenage boys. 50% of your calories should come from rice, bread, vegetables and fruit they eat .You also need to drink a lot of water, 6 to 8 gla