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 […]

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 […]

What is hypertension? | Circulatory system diseases | Health & Medicine | Khan Academy

Let’s talk about hypertension. And I’ll write that here, hypertension. And hypertension basically means high blood pressure. And we actually categorize it in different groups. So let’s use my blood pressure, 115 over 75 as an example. And I had drawn a small figure for you where I had blood pressure on this side and I had time […]

Keeping Kidneys Safe – Know How Medicines Affect the Kidneys

If you have diabetes or kidney disease, it’s important to be careful about the medicines you take. Some medicines may harm your kidneys, especially if you take them when you are sick with the flu or diarrhea. To understand why, it helps to know how the kidneys work. You have two kidneys. Your kidneys act as filters. They […]

Hypertension effects on the blood vessels | Health & Medicine | Khan Academy

Now, we’ve talked about hypertension, and you know that it means that you have high blood pressure. So the next logical thing to think about is why is that bad? Why is it a problem to have high blood pressure? And I like to think about high blood pressure from two different perspectives– one would be the perspective […]

Hypertension effects on the heart | Health & Medicine | Khan Academy

So we were talking in a previous video about hypertension and the damage that it causes on the body. And what I’d like to do is pick up where we left off and finish that conversation. And we had kind of divided things up into receiving high blood pressures and generating high blood pressures. And receiving high pressure– […]