Heart2Heart is shutting down after seven years.

PineMarten

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Facts about the heart

Let's learn more about hearts!

How this works is, each person posts a different fact about the heart. It can be about the human heart or hearts of other animals.

I'll start with this: When you're sleeping, your heart rate can be as slow as 40-50 beats per minute.

miguel90

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Re: Facts about the heart

the heart of children beats faster than that of an adult

Bradycardialady

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Re: Facts about the heart

Modesty prompted the invention of the stethoscope. Prior to that, only the bare ear pressed against the chest was used

miguel90

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Re: Facts about the heart

the one who invented the stestoscope was René Laënnec

PineMarten

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Re: Facts about the heart

Birds tend to have larger hearts in proportion to their body mass than mammals, due to metabolic demands for flight.

PineMarten

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Re: Facts about the heart

There is a heart condition called broken heart syndrome (aka Takotsubo cardiomyopathy), which temporarily weakens the heart muscle and can be triggered by emotional/physical stress.

Last edited by PineMarten (2018-07-31 08:06:39)

Diff

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Re: Facts about the heart

idk how fresh this fact is, I know a lot of people know that a hummingbird's active heart rate is 1000+BPM, which is absolutely insane to think about, that's ~16 beats every single second. Apparently while they're snoozing though, they sleep so deeply that it goes from all the way up there down to 50-180BPM, which on the extreme low end is lower than some human's resting rates.

PineMarten

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Re: Facts about the heart

It's possible to be born without a pericardium (the sac that encloses the heart) and live normally without realizing. This is also known as 'congenital absence of pericardium'. Some people have partial absence, meaning that their pericardium exists but doesn't completely cover the heart. This 'partial' pericardium can cause serious health issues.

monkey

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Re: Facts about the heart

It's said the average human heart pumps over 7,600L of blood in a day. This actually isn't true. The heart only pumps about 5L of blood every day. It just pumps those 5L over and over again all day long.

Diff

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Re: Facts about the heart

Apparently splashing cold water on your face triggers your heart to slow down.

PineMarten

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Re: Facts about the heart

The human heart normally has fat covering its surface, called epicardial fat. It makes up 20% of the heart's total weight.

orang_utan_dean

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Re: Facts about the heart

Our hearts are as unique to us as our fingerprints are...no two people share exactly the same muscular structure and ECG/EKG tracings, apparently!

PineMarten

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Re: Facts about the heart

A baby's heart starts to beat at around 22 days after conception.

PineMarten

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Re: Facts about the heart

A man's heart weighs approximately 0.55% of his body weight, while a woman's heart weighs about 0.53% of her body weight. Something to think about if you're curious about the weight of your heart.

PineMarten

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Re: Facts about the heart

The cardiac notch is a groove on the left lung's surface, providing space for the heart to sit.

Diff

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Re: Facts about the heart

The cardiac notch is a groove on the left lung's surface, providing space for the heart to sit.

Oh heck I remember finding out about that after like seeing a pic of some lungs. Had never thought about the lungs needing to make room for the heart but yeah the one lung has a whole chunk taken out of it.

bakerstbabe221

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Re: Facts about the heart

The vagus nerve stimulates certain muscles in the heart that help to slow heart rate. When it overreacts, it can cause a sudden drop in heart rate and blood pressure, resulting in fainting.

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"I should have fitted you with a cardiograph." -Eurus Holmes, The Final Problem (4x03)

Diff

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Re: Facts about the heart

Your body will anticipate exercise and raise your heart rate for you about a minute before you start. Also does the reverse, slowing things back down when you're about to settle down.

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