The 'Lub Dub' Sound

[Babayaga]

Casually squeezes human heart in his hands

[taterbater]

the way he's says lub dub sounds like chills 💀

[christopherarista]

That's a broken heart if I've ever seen one

[skinkrawler]

As former cardiac nurse 15 yrs, I appreciate the visual

[nicoleromero]

I’m grabbing my own heart in terror right now. Seeing it just makes me feel so fragile. It’s like all you gotta do is poke it and something would break.

[kolwaski]

Lub is the first heart sound. It is associated with the closure of the tricuspid and bicuspid valves at the beginning of systole. The second heart sound dub is associated with the closure of the semilunar valves at the beginning of diastol

[arhamkhan]

The guy who donated his heart for the video is a Gigachad💀💀

[StellaFritch-wlmt]

Bro opened up his heart to him how cute

[Malouco]

The heart beats are older the colder we grow
So let my heart beat grow older before I go cold 🥶

[dbopdbop]

If you hear a whoosh whoosh, you have a heart murmur.

[enk]

i was NOT expecting you to just pull it apart like that

[epicgamer]

I was not ready for the crack in that heart, much less him opening the heart.

[moneybazar]

Learned this 8th class and also the heart is literally my fav part of biology like ain't it so amazing

[kevinp.h]

I’m so used to seeing organs on diagrams and illustrations online and in books, seeing them for real feels eerie and weird

[Googoogaagaa-birh]

Gives new meaning to having an open heart

[beegyoshi]

What is “lub.” Baby don’t close me- no more.

[deqrix]

Bro just took “you broke my heart💔” to a whole OTHER LEVEL 💀💀💀

[luckybuddha]

Thank you govt should pay u 1 million a year. For this information u providing us. Very educational.

[nanni]

I casually stumbled up on this and like my heart beat outta my chest cause he’s holding a literal heart! But I looks at the other shorts and figured it was normal, was a nice shock tho

[sounaysunday]

Bro, that heart is fresher than anything in grandma’s fridge.