Subtitles section Play video Print subtitles People spend a lot of time looking forward to their next meal will be pizza, a burger , a salad. Or a bus? I mean could you eat a bus? A strange question it seems, but let's find out. The point of eating is to provide your body with energy. Food enters through the mouth where it's broken down into smaller pieces by saliva in chewing. It then enters the belly where the movement of the muscles around the stomach gastric juices break it down further. From the stomach, the mixer of the food passes into the small intestine and large intestine. Or useful nutrients and water from your meal are absorbed. The remaining material is waste and becomes a poop. Which exits through your butthole. Enzymes are molecules in our body which help speed up their reactions and chemically break down food. Their present throughout most of the digestive process, but are picky about what they want to break down. For example, in your saliva, the enzyme amylase starts breaking down carbohydrates to maltose, a type of sugar. But in the small intestine, another enzyme called maltese converts the maltose. To glucose, which is then used for energy by the body. However, some people lack the necessary enzymes to break down specific food. Consider the case of lactose intolerance. Where the bodies unable to produce sufficient levels of the enzyme lactase to break down lactose found in foods, like milk, yogurt, and cheese. As a result, they can have problems with digestion, such as abdominal bloating, farting, or nausea. When it comes to eating a bus. We don't have enzymes specifically designed to chemically break down glass, steel or plastic. But that hasn't stopped humans from eating remarkable things. Michelle Latido a French entertainer known as “Mr. Eat Everything” consumed among other things. A computer, a pair of skis, 6 chandeliers and an airplane. This task took two years to finish. To do it. He disassembled items and cut them into small pieces which he ate regular meals. He added mineral oil to lubricate the passage of the small pieces. And lots of water to wash them all down. Latido claimed to eat approximately one kilogram of non-food material daily while doing these stunts. From which he amazingly suffered no ill effect to his health. It turns out he had an insatiable desire to eat things like dirt, rubber and metal. A condition known as “PICA”. PICA differs from person to person. Some people consume non-food items to satisfy any appetite due to extreme mineral deficiency. Whereas other cases of PICA are related to psychological disorders. PICA can be quite dangerous as severe complications may arise from eating things our bodies weren’t designed to process. So then how did Michelle Latido do it? It said that Latino had an abnormally thick stomach lining which prevented structural damage as the metal passed through his system. In this case he just got lucky that his PICA coincided with the well-suited biological abnormalities. So could you eat a bus? Hypothetically. Maybe. With a rare thick stomach lining. And the bus chopped into tiny pieces over many years. It might be possible. But technically since you don't produce any enzymes for it. And you aren't absorbing any nutrients. You aren't actually eating the bus. Just simply passing it through. And we don't exactly recommend trying to find out if you can. Just don’t. Special things audible for supporting this episode to give you a free 30-day trial at audible.com/asap. This week we want to recommend the book “what if?” by Randall Monroe. Which does an amazing job at answering hilarious and sometimes absurd hypothetical question. It’s honestly a fantastic book. You can get a free 30-day trial at audible.com/asap. And choose from there massive selection. We left them as their great and you’re on the go. And subscribe for more weekly science videos.