Hypertension symptoms and categories | Health & Medicine | Khan Academy

All right. Let’s talk about hypertension. And the first thing we have to do is understand the two main categories, or types, of hypertension that are out there. So there are two types, primary– and this is actually also called essential hypertension. You might hear that word, essential. And secondary. And I’ll write that as a two. And […]

N. Korea to keep borders shut until COVID-19 treatments ready

North Korea has announced that it will keep its borders shut until there’s an effective diagnosis and treatment method for the corona virus the regime’s vice health minister Kim hyung-jun said in an interview with the Chosun Simbu a Shinbo pro-north Korea newspaper in Japan that the key way to keep the virus out is to not let […]

Calculate your own body mass index | Miscellaneous | Heatlh & Medicine | Khan Academy

So let’s talk about body mass index, BMI. This is a term that’s often discussed, and so let’s first figure out how it’s calculated. How do we figure this out? So if you have a little stick person, what you could do is have them step on a scale. And you get their weight. So the first thing […]

Learn how a stethoscope can help determine blood pressure | NCLEX-RN | Khan Academy

So this is a picture of Doctor Korotkoff. Doctor Korotkoff is a very famous Russian doctor. He lived about 100 years ago, and something he came up with, something very clever, still affects all of us, or most of us today. So he lived in the early 1900s. And around 1905, he started thinking. He was thinking about […]

Gary Slutkin: Let’s treat violence like a contagious disease

I’m a physician trained in infectious diseases, and following my training, I moved to Somalia from San Francisco. And my goodbye greeting from the chief of infectious diseases at San Francisco General was, “Gary, this is the biggest mistake you’ll ever make.” But I landed in a refugee situation that had a million refugees in 40 camps, and […]

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