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Got milk? Fact is, most people don't -- and shouldn't -- because for them, ice cream and milkshakes are basically toxic. So why can some people drink milk and survive? Turns out they're mutants! SciShow explains.

This week, Mister Brown joins Squeaks to answer a bunch more of your questions about the Earth and about our bodies!

The world of milks is much wider than your coffee shop oat variety. From rhinos to cockroaches, milk is essential for the development of many animals' offspring.

Got milk? Fact is, most people don't -- and shouldn't -- because for them, ice cream and milkshakes are basically toxic. So why can some people drink milk and survive? Turns out they're mutants! SciShow explains.

Already watched the Amoeba Sisters first video on enzymes and ready to explore a little more? In this video, the Amoeba Sisters cover a few examples of enzymes in the human body before emphasizing that enzymes are found in all the...

Got milk? Fact is, most people don't -- and shouldn't -- because for them, ice cream and milkshakes are basically toxic. So why can some people drink milk and survive? Turns out they're mutants! SciShow explains.

Paul Andersen starts with a brief description of enzymes and substrates. He then explains how you can measure the rate of an enzyme mediated reaction. Catalase from yeast is used to break hydrogen peroxide down into water and oxygen. ...

Nachos are great...if you are among the lucky ones whose body can digest them. When digestion goes according to plan, the small intestine performs most of your chemical digestion in the duodenum, while accessory organs including...

The Amoeba Sisters explain enzymes and how they interact with their substrates. Vocabulary covered includes active site, induced fit, coenzyme, and cofactor. Also the importance of ideal pH and temperatures for enzymes are discussed.

Lactose intolerance is quite common, especially in Asian countries. The reason behind this is gene-culture co-evolution. Lactose intolerance is the inability to digest lactose in milk because they lack the lactase enzyme. A 1981 study...

When it comes to mammals, we are the only species that drinks milk directly from other species, or we are the only one that does so in adulthood. Most juvenile animals can drink and digest their mothers milk because they carry the enzyme...

Lactose intolerance

In this video, Justin from the Institute of Human Anatomy discusses the how lactose in metabolized in the body, the eventual slowdown and ceasing of lactase, what happens to the colon when bacteria start consuming lactose, and the...

1) What is the function of the enzyme, lactase? 2) What is the cause of the flatulence and diarrhea associated with lactose intolerance?

Lactose intolerance is quite common, especially in Asian countries. The reason behind this is “gene-culture co-evolution”. Lactose intolerance is the inability to digest lactose in milk because they lack the lactase enzyme. A 1981 study...

When it comes to mammals, we are the only species that drinks milk directly from other species, or we are the only one that does so in adulthood. Most juvenile animals can drink and digest their mother’s milk because they carry the...

Infants usually get the nutrients they need to grow and survive from their mother's milk. As we get older, some people drink the milk of other animals like cows to get nutrients, while other people develop lactose intolerance. Explore...

Learn about carbohydrates within the overall topic of organic chemistry.