How blood pressure works - Wilfred Manzano

Travel into the circulatory system to see how blood pressure helps deliver oxygen and nutrients to your body’s tissues.

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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 of the blood vessels? Wilfred Manzano gives the facts on blood pressure.

Lesson by Wilfred Manzano, animation by Fox Animation Domination High-Def.

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[Narsuaq]

It's scary to think how much needs to be in absolute perfect working order for us to simply exist.

[Sam]

My whole body feels weird after watching this video, it's like my blood vessels know we're talking about them 😳

[Quazi-Moto]

I battle high BP, had a heart attack at 42 and have a stent in the artery on the right side of my heart.
People say a bad heart attack feels like an elephant sitting on your chest; it's an apt description. It's by far THE most pain I've ever experienced. So much pain, in fact, that for the first hour I could do nothing but literally writhe in agony on my bed, begging for it to stop. It was a further 2 hours before I could drive myself to the ER.

When my BP gets too high, I can literally see it. The edges of my vision darken with each heartbeat -- sort of like the beginning of tunnel vision, but the tunnel never closes fully.
Plus when it gets that high, I can also feel the extra pressure in my eyeballs with each beat.

[rudyperez]

Wow!! This scares me :( being able to see the process of a clogged artery and just the thought of that happening within my body is terrifying.

[BigIrick]

Two months ago my bp was around 135/82-90, then I got a gym membership and I go 5 days a week around an hour or two a day and its around 116/59-64 now. Im 30 and feeling good. Changed my diet as well....

[Blokmn]

A combination of blood pressure, poor diet and exercise, hereditary growth hormones, and excessive walking/hiking left me with varicose veins in my legs, resulting in often swollen, purple ankles since the veins are stretched so wide the pressure from the heart can't push it back up all of the time. I feel like this is the kind of thing that should be taught more in schools, especially since teenagers and kids often go for cheap, sugary/salty/fatty foods.

[shivaprasadmallikarjunaiah]

Everything about the blood pressure, how stress can affect it, what can increase, what is done via angioplasty, all explained in such simple terms. It was easy to follow and understand.

[gagarfield]

"stress can increase blood pressure"

*starts stressing about increasing blood pressure*

[letzrock]

One thing many aren't aware of that raises BP is straining on the toilet. If you're constipated or just finding it difficult to make a bowel movement happen, don't spend an endless effort to try to push it out. Typically people will hold their breath while straining and this increase BP in your head dramatically. If done often enough, you can cause serious damage to your arterial walls. Same for lifting weights at the gym while holding your breath too often.

[tntkff]

"Your arteries are well suited for the challenge..."

Average American diet: "Imma bout to end this man's whole career..."

[janostsonka]

This video explained in 5 minutes, what I could not understand in a lifetime! Very worth spreading around! Great job!!!

[OnlyBanzho]

Now I understand I’m in danger, my mom gotta stint. Dad hypertension. Granddad stroke. When I eat and sleep as a truck driver, I sometimes wake up and my whole body is pounding. Thank you for this

[ThatClinicalInstructor]

My students absolutely LOVE TedEd videos, and I use SO many of them in teaching my nursing and allied health students. Thank you for all you do!

[melissajomsky]

Wow this animation was amazing. Visual learners appreciating this everywhere.

[TheMIBlack]

As a person diagnosed with pre-hypertension, this video is very informative. Thank you.

[kana-is-sleepy]

I wish you would have discussed low blood pressure too. I know that high blood pressure is much more common nowadays, but I have low blood pressure that sometimes causes orthostatic intolerance and POTS symptoms in the short-term, and I do wonder how that could affect me in the long term too.

[garicrewsen]

The best visualization I've ever seen for this subject, and I earned an "A" in anatomy lecture and lab at Uni. Whomever is animating your videos should be retained for services with a decent raise.

[kewaltakhellambam]

doing exercises and eating good diets is the best way of thanking this beautiful system of our body

[simranshah]

I wish TEDed would have been my biology teacher at school then surely I would have been a qualified surgeon .

[adambrown]

The background clarinet music was especially good in this video.