What Does Gum Disease Have to Do With Alzheimer’s?

What Does Gum Disease Have to Do With Alzheimer’s?

[INTRO ♪] Regular brushing and flossing are vital to the health of your teeth and gums. We all know that—it’s been drummed into our heads since we first picked up a toothbrush. But brushing your teeth might not just be good for your oral health: It could help protect your brain, too. Because according to […]

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Why Do Bats Carry So Many Dangerous Diseases?

Why Do Bats Carry So Many Dangerous Diseases?

[♪ INTRO] One fifth of all mammal species today are bats. And that’s awesome, because they help us out in all sorts of ways. Like, they pollinate a lot of plants, help regrow forests and control pests, and their poop is pretty excellent fertilizer. Plus, they’re just really cool. Some of them can sense magnetic […]

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How Liver Problems Can Lead to Brain Disease

How Liver Problems Can Lead to Brain Disease

[INTRO ♪ Your brain works together with the rest of your body in lots of different ways. If things go wrong with some organs, like if your heart stops pumping, your brain’s obviously going to have a bad time. But sometimes the connection is a little less straightforward. Take the liver, for example: you need […]

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Is COVID-19 a Pandemic? | March 2020 Update

Is COVID-19 a Pandemic? | March 2020 Update

Thanks to Brilliant for supporting this episode of SciShow. Go to Brilliant.org/SciShow to learn more. {♫Intro♫} This video was filmed on March 3 2020. If we have a more up-to-date version of it, it will be linked at the top of the description, and right up there. Let’s go over some terminology to start. SARS-CoV-2 […]

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Muscles of Facial Expression – Anatomy Tutorial PART 1

Muscles of Facial Expression – Anatomy Tutorial PART 1

This is a tutorial on the muscles of the face, so the muscles responsible for facial expression. These muscles are innervated by the seventh cranial nerve, the facial nerve. So when you’re testing a person’s cranial nerves and you get to cranial nerve no. 7, you ask them to wrinkle their forehead, to close their […]

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Muscles of Mastication – Anatomy Tutorial

Muscles of Mastication – Anatomy Tutorial

This is a tutorial on the muscles of mastication. So the muscles of mastication are innervated by the trigeminal nerve. They’re innervated by the mandibular branch of the trigeminal nerve. So that’s V3. When you’re testing the trigeminal nerve, you’re testing muscles of mastication and facial sensation. So the muscles of mastication are innervated by […]

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Why Do Arteries Get Clogged? It’s Not What You Think

Why Do Arteries Get Clogged? It’s Not What You Think

Cardiovascular disease has been the number one killer in the world for over a decade and statistically, it’s the number one most likely thing to kill me, so I’m definitely interested in learning more about it. It brings to mind one phrase you may have heard now and then, “clogged arteries.” And I’m going to be […]

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Endometriosis: When Uterine Tissue Goes Rogue

Endometriosis: When Uterine Tissue Goes Rogue

[♪ INTRO] If you’ve ever had one, you know that periods can be uncomfortable, to say the least. While the uterus is busy breaking down and spitting out tissue, the rest of the body is ushering in fatigue, headaches, diarrhea, vomiting, and of course, cramps. And while cramps are always crummy, some are actually debilitating. […]

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Anatomy Terminology – Anatomy Tutorial

Okay so this is a tutorial on anatomical terms, and it’s a basic tutorial which should hopefully help you to understand how different terms in anatomy are used to describe the relative positions different structures in the body. So firstly, I’m going to talk about the anatomical position. This model here is standing in the […]

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