5 Why Do I Poo

WHY DO I POO? WHY DO I?

我为什么要大便？为什么呢？

Do You Need the Bathroom? Birds do it, bears do it, and mice that live under the stairs do it. Everybody poos! But have you ever wondered why we poo? Where does poo come from? Where does it go? GROSS BUT GREAT! You eat and drink every day. Your body takes out what it needs from the food to stay healthy. Then it gets rid of the parts of food it does not need. This is poo and pee!

你需要洗手间吗？鸟这样做，熊这样做，住在楼梯下的老鼠也这样做。 大家普斯!但你有没有想过我们为什么要大便？ 便便是从哪里来的？它去了哪里？ 恶心但很棒！你每天吃喝。 你的身体从食物中摄取它需要的东西来保持健康。 然后它会去除不需要的部分食物。 这是便便和尿！

Food Goes In All people need to eat. Food gives us nutrients. These are the substances people need to stay alive and healthy. When you eat, different body parts break down food and take out nutrients for your body to use. Learn more about the parts of your body that break down food on pages 12 and 13. You need many different nutrients each day. Here is what you get from a spaghetti dinner. Getting all the right nutrients from food is called having a balanced diet. MEAT helps build muscles. TOMATOES give you vitamins and minerals. SPAGHETTI helps give you energy. MILK helps build bones.

所有人都需要吃东西。 食物给我们营养。这些是人们维持生命和健康所需要的物质。 当你吃东西的时候，身体的不同部位会分解食物，取出营养物质供你的身体使用。 在第12页和第13页了解更多关于分解食物的身体部位。 你每天需要许多不同的营养素。 这是你从意大利面晚餐中得到的。 从食物中获取所有正确的营养被称为均衡饮食。 肉类有助于增强肌肉。西红柿提供维生素和矿物质。 意大利面有助于给你能量。 牛奶有助于骨骼发育。

Breaking Down Food The first stop on food's journey through your body is the mouth. Each of the parts of your mouth do a job to break down food. Front teeth are sharp for biting. Lips keep food inside the mouth. The throat leads down to your stomach. The tongue moves food around in your mouth. Back teeth are flatter for chewing. When you eat, the first thing you do is chew your food into smaller pieces. It must be a mushy ball before you can swallow it. Saliva is the liquid in your mouth. It helps break down your food, too! After food is swallowed, it moves through your body and different body parts take nutrients out.

食物在你体内的第一站是口腔。 口腔的每个部位都有分解食物的作用。 门牙锋利，便于咬人。 嘴唇把食物保存在嘴里。 喉咙下到你的胃。 舌头在嘴里移动食物。 后牙较平，便于咀嚼。 当你吃东西的时候，你要做的第一件事就是把食物嚼成小块。 它必须是一个糊状的球，你才能吞下它。 唾液是你嘴里的液体。 它也有助于分解你的食物！食物被吞下后，它在你的身体中移动，不同的身体部位将营养物质带走。

Poo Comes Out Fiber is the tough parts of food that are hard for your body to break down. Eating foods that have a lot of fiber helps poo come out more easily. HIGH FIBER FOOD After your body takes all the useful nutrients out of your food, there are usually parts left over. The parts of food your body cannot use are called waste. Waste comes out of you as poo! Poo is made up mostly of water and fiber. It also contains a slime called mucus. Mucus helps poo slide through your body. Poo also contains tiny living things called bacteria. WATER MUCUS FIBER Good bacteria help break down food. Dead bacteria are what makes your poo smelly!

纤维是食物中最难分解的部分，你的身体很难分解。 吃含有大量纤维的食物有助于便便更容易排出。 当你的身体从食物中吸收了所有有用的营养物质后，通常还会剩下一些。 你的身体不能利用的部分被称为废物。 废物从你体内排出，就像便便一样！便便主要由水和纤维组成。 它还含有一种叫做粘液的黏液。 粘液可以帮助便便从你的身体里滑出来。 便便中还含有一种叫做细菌的微小生物。 好的细菌有助于分解食物。 死细菌让你的便便变臭！

JOURNEY OF POO HOW DOES PIZZA BECOME POO? STEP 1: Chew up the pizza in your mouth. Then swallow it. STEP 2: The chewed pizza travels down a long tube to your stomach. Special muscles push and squeeze the food down, like toothpaste through a tube! STEP 3: The food sits in your stomach for about 4 hours! A special substance breaks the food down into nutrients your body can use. STEP 4: The useful nutrients are taken in through the intestines and sent to the rest of the body. STEP 5: The unused parts of the food are squashed into poo, or waste. STEP 6: Poo leaves your body when you are on the toilet

披萨是怎么变成便便的？ 第一步：用嘴咀嚼披萨。 然后吞下去。第二步：咀嚼过的披萨通过一根长管子进入你的胃。 特殊的肌肉推动和挤压食物，就像牙膏通过管子一样！第三步：食物在你的胃里呆了大约4个小时！一种特殊的物质将食物分解成你身体可以使用的营养物质。 第四步：有用的营养物质通过肠道被吸收，并被输送到身体的其他部位。 第五步：食物中未使用的部分被压成粪便或废物。 第六步：当你上厕所时，便便会离开你的身体