TED-Ed
TED-Ed: How does cancer spread through the body? - Ivan Seah Yu Jun
Cancer usually begins with one tumor in a specific area of the body. But if the tumor is not removed, cancer has the ability to spread to nearby organs as well as places far away from the origin, like the brain. How does cancer move to...
TED-Ed
TED-ED: How bones make blood - Melody Smith
Bones might seem rock-solid, but they’re actually quite porous inside. Most of the large bones of your skeleton have a hollow core filled with soft bone marrow. Marrow's most essential elements are blood stem cells and for patients with...
TED-Ed
TED-ED: How your muscular system works - Emma Bryce
Each time you take a step, 200 muscles work in unison to lift your foot, propel it forward, and set it down. It's just one of the many thousands of tasks performed by the muscular system: this network of over 650 muscles covers the body...
TED-Ed
TED-Ed: How a wound heals itself - Sarthak Sinha
Our skin is the largest organ in our bodies, with a surface area of about 20 square feet in adults. When we are cut or wounded, our skin begins to repair itself through a complex, well-coordinated process. Sarthak Sinha takes us past the...
SciShow
4 Big Reasons to Get Your Eyes Checked (Even With 20/20 Vision)
If you don't have vision problems, getting an eye exam probably hasn't been your top priority, however visiting an ophthalmologist won't just tell you about your eyes, it can reveal a lot about your health.
Amoeba Sisters
Homeostasis and Negative/Positive Feedback
Explore homeostasis with the Amoeba Sisters and learn how homeostasis relates to feedback in the human body. This video gives examples of negative feedback (temperature and blood glucose regulation) and positive feedback (events in...
TED-Ed
TED-Ed: Gravity and the human body - Jay Buckey
Our bodies function necessarily under the presence of gravity; how blood pumps, a sense of balance and bone growth are all due to life in a world where gravity is an inescapable reality. Armed with experiments from neuroscientists David...
Crash Course
Tissues, Part 1: Crash Course A&P
In this episode of Crash Course Anatomy & Physiology, Hank gives you a brief history of histology and introduces you to the different types and functions of your body's tissues. -- Table of Contents: Nervous, Muscle, Epithelial &...
TED-Ed
TED-Ed: How blood pressure works - Wilfred Manzano
If you lined up all the blood vessels in your body, they'd be 60 thousand miles long. And every day, they carry the equivalent of over two thousand gallons of blood to the body's tissues. What effect does this pressure have on the walls...
TED-Ed
TED-Ed: Sajan Saini: How light technology is changing medicine
It's an increasingly common sight in hospitals around the world: a nurse measures our height, weight, blood pressure, and attaches a glowing plastic clip to our finger. Suddenly, a digital screen reads out the oxygen level in our...
Crash Course
The Integumentary System, Part 1 - Skin Deep: Crash Course A&P
Anatomy & Physiology continues with a look at your biggest organ - your skin. -- Table of Contents: All About Skin 0:22 Epidermis, Dermis, & Hypodermis 1:30 Melanin And Keratin Cells 2:15 Ensure You Get A Good Tattoo 8:01
Curated Video
What Causes High Blood Pressure?
High blood pressure or hypertension can affect anyone...and what you don't know about it really can hurt you. Take our Everwell Challenge and see how you measure up. Okay, let's get started: 1. True or false. The main cause of high blood...
Curated Video
How to Reduce Facial Redness
Howcast - Tired of looking like you’re embarrassed—or worse, drunk—24/7? Here are some easy ways to make your cheeks less rosy.
Curated Video
What Are Hemorrhoids?
Howcast - Learn about hemorrhoids from gastroenterologist Lisa Ganjhu, M.D. in this Howcast video about stomach problems and digestive disorders.
Curated Video
Prostaglandin E1 & Erectile Dysfunction
Howcast - Learn about prostaglandin E1, a drug used to treat erectile dysfunction, in this Howcast video.
Curated Video
Vasomax & Erectile Dysfunction
Howcast - Learn about Vasomax, a medication used to treat erectile dysfunction, in this Howcast video.
Curated Video
Nitrates & Erectile Dysfunction
Howcast - Learn why it's dangerous to use erectile dysfunction medication within 24 hours of taking nitrates in this Howcast video.
Curated Video
Cialis & Erectile Dysfunction
Howcast - Learn about Cialis, a medication used to treat erectile dysfunction, in this Howcast video.
Curated Video
Levitra & Erectile Dysfunction
Howcast - Learn about Levitra, a medication used to treat erectile dysfunction, in this Howcast video.
Curated Video
Surgical Causes of Erectile Dysfunction
Howcast - Learn about surgical causes of erectile dysfunction in this Howcast video.
Curated Video
Bicycling & Erectile Dysfunction
Howcast - Learn how bicycle riding can cause erectile dysfunction in this Howcast video.
Curated Video
Hardening of the Arteries & Erectile Dysfunction
Howcast - Learn how hardening of the arteries can cause erectile dysfunction in this Howcast video.
Curated Video
What Is Erectile Dysfunction?
Howcast - Learn what erectile dysfunction is in this Howcast video.
Curated Video
Smoking, Drugs, Alcohol & Erectile Dysfunction
Howcast - Learn how smoking, drugs, and alcohol can cause erectile dysfunction in this Howcast video.