How do blood transfusions work? – Bill Schutt

In 1881, doctor William Halsted rushed to help his sister Minnie, who was hemorrhaging after childbirth. He quickly inserted a needle into his arm, withdrew his own blood, and transferred it to her. After a few uncertain minutes, she began to recover. Halsted didn’t know how lucky they’d gotten. His transfusion only worked because he and his sister happened to […]

Why Are Old People Taking The Blood Of Young People?

Hey there, welcome to Life Noggin! Lately, Triangle Bob has been obsessed with working out. He started asking questions like, “Does young blood actually make you stronger?” And I was like, “Triangle Bob, why are you asking that”, but I mean, I guess I’ll make an episode on it! You see, Triangle Bob isn’t the only gym junkie who’s had […]

Testing if Sharks Can Smell a Drop of Blood

I texted this clip to my wife who wanted proof I wasn’t doing anything stupid on a recent trip to the Bahamas Now if you’re wondering what my feet are doing in shark-infested waters with a bucket of blood 20 miles away from any land Well, that comes down to a conversation. I had with my friends at the Discovery […]

The Cardiac Cycle, Animation

The cardiac cycle refers to the sequence of events that occur and repeat with every heartbeat. It can be divided into two major phases: systole and diastole, each of which subdivides into several smaller phases. Systole and diastole when not specified otherwise refer to ventricular contraction and relaxation, respectively. Reminders: Blood flows from higher to lower pressure. Contraction increases the […]

Weizmann in Focus, Episode 12: Heart Health for Humanity

Hi, I’m Dave Doneson. Welcome to Weizmann in Focus. February is American Heart Month. Our hearts pump blood throughout the body, supplying the oxygen and nutrients it needs to survive. But these amazing, fist-sized muscles are also susceptible to illness. Heart disease is the leading cause of death in the world. In the U.S., it’s responsible for one out of […]

Is Climate Change Aiding Spread Of Infectious Diseases?

>>>>PEGGY: THE PROLIFERATION OF DISEASE CARRYING INSECTS. AS MY GUEST STANLEY MALOY, DEAN OF SDSU’S COLLEGE OF SCIENCES EXPLAINS OUR WARMING WORLD HAS BOTH SCIENTIFIC AND ETHICAL IMPLICATIONS. STANLEY, THANKS SO MUCH FOR JOINING US. LET’S START WITH THE SCIENCE. A REPORT BY WORLD BANK RECENTLY FOUND THAT THE EARTH WILL BE ABOUT FOUR DEGREES HOTTER BY THE END OF […]

The Most Painful Illness Known to Man

We here at The Infographics Show routinely cover the most pressing scientific questions of our age, such as what would happen if everyone on Earth screamed at the same time, or what if everyone went blind for 10 seconds? Occasionally we like to get silly and talk about Link’s love life in the Legend of Zelda or taunt our favorite […]

Are You a Chronic Procrastinator?

Okay, I’ll admit it. I procrastinate… a lot. It’s just that watching Netflix or filling up my Pokedex is much more interesting than cleaning or paying my bills. But let’s face it, we all procrastinate. And the question is: why? Why do we put things off when we know those tasks will still need to be done later? Well American […]