You have done a great deal of work today, and your eyes are burning and feeling itchy. Your arms and legs feel unusually heavy, and you cannot seem to stop yawning. Every time you sit down to relax for a moment, you feel less like getting up again.

Everything you eat on the island has some nutrients in it, and these nutrients are used by your body to grow. They are also used to heal and repair any injuries you might have. They provide you with the energy your body requires to get work done.

There is a lot of activity in your digestive system. When you eat a dinner, it goes from your mouth into a tube in your throat called an esophagus. As you swallow, strong muscles move the food downward.

Teeth are very strong and also quite essential. They bite, chew, and grind your food so that it is easier for your body to eventually digest. They also break down each individual piece of food so that it is smaller and easier to swallow.

Fructose is nature's form of sugar. It makes foods taste sweet and can be found in all different kinds of fruit. It gives your body the energy it requires to keep moving and working.

One important nutrient found in certain types of food is fiber. Fiber is very hard to digest, but it helps push food through your intestines so that is can be effectively eliminated.

Saliva, or spit, has multiple purposes. It is produced by special salivary glands inside the cheeks and is mostly made of water. Saliva is responsible for breaking down food, keeping the mouth clean, and making bites of food easier to swallow.

There are two tubes in your throat. One is the esophagus and the other one is the trachea, also known as the windpipe. When you swallow, your windpipe closes for protection. If you are startled, food can go in the trachea by accident.

When you are hungry, the muscles in your stomach move. As they shift, they cause your stomach to produce noises that sound similar to growling. It has been several hours since you ate anything and you can hear your empty stomach begin to grumble.

Your tongue is very important because it has more than 10,000 taste buds on it. These taste buds allow you to taste the various flavors of your food. The tongue is a strong muscle that pushes the food up and down against the roof of your mouth.

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