A Crapload Of Facts About The Human Body [Pic]

Submitted by: fancylad 7 years ago in Science

Damn, the human body is pretty incredible to be able to do all this stuff.
There are 109 comments:
Male 1,647

How can I trust an infogram that can`t even get the language correct?
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Male 698
sounds fun
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Male 440
the tounge isn`t the strongest muscle, your quads are. I don`t think some of this is true
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Male 208
that 450mile hair growth sounds like bullshiet-_-
even the old asian man with longest hair is not that long..wait unless...they mean every strand of hair combined together in length hmm..
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Male 42
"At the 20-week mark, the structures that will become the ovaries house roughly 6 to 7 million potential egg cells. From that point on, the number begins to decrease rapidly."

http://bit.ly/bxbRUt

They only have use of around 300-500 because there are many many that fail. Internet research for the win.
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Male 1,497
One thing: Women don`t "produce" egg cells, they are born with all of the ones they are ever going to have, and hit menopause when they run out(they lose one when the have Periods). The average woman has only 400-500 eggs.

Family Life,people, you learn this in school.
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Female 1,545
I want to know where they get their "7 million eggs" statistic. Because women only produce about 500 fully-fledged oocytes in their reproductive lifetime.
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Male 193
babies havent got kneecaps? what the drat! how come it doesnt hurt them to crawl? i am baffled and amazed!
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Male 12,365
[quote]most bacteria in your body is beneficial, and you would die without it.[/quote]

Would you necessarily *die*? I know the symbiotic bacteria are very useful, but are they absolutely essential? Off the top of my head, the only two things I know of that bacteria do in humans is break down complex sugars into simpler stuff that the human digestive system can handle and act as security guards to stop other bacteria setting up camp in the vagina (which is why antibiotics often cause thrush - they kill off the "security guard" bacteria).
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Female 1,283
Lies, 66Stang, because candid yeast overgrowths are the way to go B-|
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Male 225
most bacteria in your body is beneficial, and you would die without it.
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Male 12,365
[quote]um. Angilion, i think you have your facts wrong. we have about 40,000 hairs on our head[/quote]

i) Most sources state at least twice that number. For some reason, the average varies a bit depending on hair colour.

ii) Humans have hair over nearly all of their body. It`s extremely fine in many places for many people, sometimes too fine to even see, but it`s there. If you get enough magnification on an apparently hairless part of your skin, you can see the hair follicles. The only truly hairless parts are eyelids, lips, palms and soles. Unless you have some form of baldness that stops hair growing, of course.

It`s not as simple as half an inch per hair, though, because hair grows at different rates on different parts of the body.
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Female 202
4.4 pounds of bacteria... gross.
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Male 17
um. Angilion, i think you have your facts wrong. we have about 40,000 hairs on our head
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Male 6,077
To The-Sentinel,
Good point. Maybe it refers to the total daily growth of each hair on the body, added up. I still don`t think it`ll add up 65 feet per day, though. Maybe on Chewbacca, but not a human.
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Male 1,451
Bill Nye taught me that the surface area of my lungs are the same as a tennis court!

Picture a sponge, it may only be as big as your lungs(ish) but it can hold water because of the holes in it. It`s all about surface area!
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Female 901
"every human bends HER finger....." yeah.
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Female 98
wow, from reading the comments half of these people need to go back to school...
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Male 12,365
[quote]The one about hair growing 450 miles is bullsh*t. it grows 1/2 - 1 inch a month = 1ft a year, average = 75ft a lifetime.[/quote]

Per hair.

Humans average about 5 million hairs.
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Male 12,365
[quote]evry human bends HER finger 25 mill times in a lifetime whats up with the her?[/quote]

If you use what are now male-specific pronouns due to recent changes in English, quite a lot of people will complain.

Because most of those people are sexist hypocrites, they will not complain if you use what are and always have been female-specific pronouns.

It`s generally considered to be a good thing to exclude male people from consideration on a social/political scale - that`s what feminism is and it`s been very successful.

So the common use of language increasingly excludes male people - doing so matches current social norms and thus attracts fewer complaints.

The other options are to make up pronouns, which will result in ridicule, or use plural pronouns (which are sex-neutral), which will result in complaints about grammar.

I think it`s better to change grammar than to exclude half of humanity. `They` can work well enough as both si
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Male 12,365
[quote]I don`t get how the area of my lungs is equivalent to a tennis court....[/quote]

That might be true in terms of total surface area. Lungs aren`t just bags of air - there`s a lot of complex structure inside.

A quick way to visually illustrate the idea is to get a sheet of paper and fold it like a concertina.

A4 is roughly 8x12 inches, so surface area is roughly 96 inches.

Fold it every inch along the longer side and you end up with a piece of paper that`s 8x1 inches. Same piece of paper, same surface area, but the folding makes it seem much smaller.
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Male 4,680
[Citation needed].
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Male 1,148
@ broizfam
probably is 65 feet a day, considering there are 100,000 - 200,000 hairs on your head alone it`s understandable.
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Male 3,915
i saw the same thing wolfking and then realize....women bend their finger for...ahem...things men don`t....
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Male 1,523
I don`t get how the area of my lungs is equivalent to a tennis court....
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Male 6,077
I know, I know...so is writing "erro", instead of "error"!
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Male 6,077
450 miles... let`s see, now:
450 miles x 5,280 ft/mile = 2,376,000 feet
If a human lived an average of 100 years (it`s considerably less) then that would mean:
2,376,000 feet/100 years = 23,760 feet per year
With 365 days per year that would give us:
23,760 feet/365 days = 65.1 feet of hair growth per day in order to grow 450 miles of it in a 100 year lifetime.
Someone please check my math...I keep getting the same result and that`s an unbelievably glaring erro, if I`m right!
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Male 156
evry human bends HER finger 25 mill times in a lifetime whats up with the her?
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Female 47
`This is unusual in the sense that it does not list it`s source(s).`

except for healthwatchcenter.com
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Male 61
It says healthwatchcenter.com at the bottom
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Male 35
"Some of the facts probably are wrong. These inforgraphics never source anything."

To the contrary, most of the infographics list their sources at the bottom of said graphic. This is unusual in the sense that it does not list it`s source(s).
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Male 3,425
Some of the facts probably are wrong. These inforgraphics never source anything.
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Male 2,552
>MacCanuck
OK, that actually helped me a bit. But it still is quite interesting imo...
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Female 315
Uh. Some of these facts are kind of incorrect. >.> And there are some typos. *Grammar Nazi strikes again*
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Male 2,552
o.O That infosnippet about kneecaps was a small, if rather insignificant, revelation to me.
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Male 1,043
The 1 with the egg cells isn`t right? I believe it was: 40.000 egg cells already at birth. Or later on idunno.. And every 2 weeks during ovulation 1 comes free n stuff..
but it was 40.000 not 7 million.
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Male 976
>>I think the average texan could become more than 7 bars of soap<<

HEY-OHHHHH!! *ba-dum-tss!*(rimshot)
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Female 146
"The one about hair growing 450 miles is bullsh*t. it grows 1/2 - 1 inch a month = 1ft a year, average = 75ft a lifetime. "
It`s not refering to ONE hair! It is refering to ALL the hair on the body. Cool facts!
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Male 260
The one about hair growing 450 miles is bullsh*t. it grows 1/2 - 1 inch a month = 1ft a year, average = 75ft a lifetime.
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Male 683
I think the average texan could become more than 7 bars of soap
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Male 1,623
""This is in-fact true. Those who die younger bend their finger at a higher rate. You can actually quite accurately predict within the nearest 2 weeks when you will die by the rate at which your finger bends. "

By that rationale guitarists should only ever live to about 30"

They do lol.
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Male 4,793
no wait, on my previous post i want to correct myself, to 98% of the english speaking population, crap is not considered a cuss word. the other 2% that thinks it is a cuss word are usually socially awkward though.
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Male 4,793
"Why can titles of things on IAB have cuss words, and not us? "

crap is not a cuss word.
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Male 1,108
"This is in-fact true. Those who die younger bend their finger at a higher rate. You can actually quite accurately predict within the nearest 2 weeks when you will die by the rate at which your finger bends. "

By that rationale guitarists should only ever live to about 30
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Male 3,296
450 miles of hair?? so not true
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Male 310
Wow, i wish I had 700,000 comments to say about this POS.
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Male 1,815
To put the thing about the tongue in perspective, it`s relative to its size.
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Male 94
Enough with all you geeks correcting this list. Its called a crap load of facts because the facts are all crap. Get it?
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Male 277
@iKit5 -- Pretty sure crap and damn aren`t censored and aren`t really cusswords
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Female 355
Why can titles of things on IAB have cuss words, and not us?
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Male 56
That kneecap thing is a misleading. The cartilaginous precursor of the kneecap is there before birth, but primary ossification doesn`t start until age 2
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Male 326
Fascinating. A million+ chemical reactions took place in my brain while writing this comment.
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Male 12,365
[quote]Exactly Angillion. The massetter is pretty small, but attaches very near the "hinge" in the articulation of the jaw. That would make a bite stronger, right?[/quote]

It depends on where the other end attaches and the length of the jaw. Leverage is basically a matter of relative lengths and fulcrum position. Muscle length also affects the amount of force exerted. It`s definitely a matter of leverage. So the masseter muscle is weaker but able to apply more force due to the mechanical advantage of leverage.

Wow...I`ve just found the Guinness-certified record forces exerted for humans. The current record for a jaw is 4,337N for a bite, sustained for 2s.

4,337N is enough force to lift 442Kg against Earth`s gravity on the surface.
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Female 165
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Female 165
Actually new studies have shown that women are born with eggs and produce some as well.
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Male 513
45.89 percent of all statistics are made up on the spot...
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Male 32
"Every human bends her finger 25 million times in a lifetime"

This is in-fact true. Those who die younger bend their finger at a higher rate. You can actually quite accurately predict within the nearest 2 weeks when you will die by the rate at which your finger bends.

Yes this means that babies who die were in-fact bending their finger at a rate faster than the human-eye can detect, in order to fit in all 25 million bends before the final konk-out.
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Male 776
That tongue "fact" is probably the most annoying one I face often.

"The tongue is often cited as the "strongest muscle in the body," a claim that does not correspond to any conventional definition of strength. This phrase may have originated as a metaphor, referring to power of words. In addition, the tongue contains a regenerative feature, contained primarily within the intrinsic muscles, that actually allows the tongue to regenerate and grow back into its original shape and structure if it suffers severe damage[citation needed]. However, if it is damaged too far back, the regenerative properties of thetongue begin to decrease and it may become una ble" to fully redevelop.
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Male 25,416
wow, infographic fail with no logical facts that have been proven, only speculation!
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Male 3,482
"a female doesn`t produce eggs. she is born with all the eggs she will ever have"

Yeah, that`s about the point where I called BS...

Unless they`re considering while they`re in the womb, or the facts I`ve been receiving all my life are wrong...

Maybe they`re thinking male sperm cells...? But then that number would be WAY to small...

I dunno. I still think most of these infographics are BS anyway...
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Female 1,401
a female doesn`t produce eggs. she is born with all the eggs she will ever have
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Male 1,764
Exactly Angillion. The massetter is pretty small, but attaches very near the "hinge" in the articulation of the jaw. That would make a bite stronger, right?
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Male 1,764
I don`t know why I`m so obsessed with this one, but Crackr Jak and Dreizehn, the tongue is composed of multiple muscles. Jump to 87.
The tongue is not the only "muscle" not covered by skin, not even close. I`ll throw the diaphragm as the first muscle that came to my mind, but there are multiple, multiple others.
The tendon thing is also bull. Facial expression muscles attach at one end to skin, not to another bone by tendons.
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Female 1,682
I didn`t know the part about how babies didn`t have kneecaps till then. Thats pretty interesting o.O
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Male 12,365
I`m going to muddy the waters with another suggestion: heart.

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Male 12,365
[quote]Also, most muscles produce a very similar force to size ratio, so muscle force is determined by size and the mechanics of the articulations it acts upon (I`m dumb as hell when it comes to physics so I can`t really explain this one).[/quote]

As far as I can tell, you`re talking about leverage. Maybe I`m wrong, but that seems to fit. Leverage makes a hell of a difference.
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Male 12,365
Dreizehn:

The tongue is not A muscle, as people have pointed out. It`s a collection of different muscles, some wholly within the tongue and some partly within the tongue.

Tongue muscles and quadriceps are made of the same type of muscle fibre - striated.

Strength is strength. Strength to volume ratio is strength to volume ratio. You`re arguing that strength is not strength and strength to volume ratio is strength. That doesn`t make sense.

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Male 17,511
[quote]The tongue IS a muscle..[/quote]

Yup, It is. It`s also the only muscle (besides the heart) attached only at one end with one tendon. Also happens to be the fastest healing part of the human body. It`s also the only muscle not covered by `skin`.
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Male 432
Dreizehn, what you`re saying is that the tongue is the strongest proportional muscle in the human body. That`s well known. But this infographic says it`s the strongest of all muscles, or at least implies that.
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Male 1,764
No Dreizehn, the tongue is composed of between 16 to 18 muscles(every anatomy book seems to say a different thing). Also, most muscles produce a very similar force to size ratio, so muscle force is determined by size and the mechanics of the articulations it acts upon (I`m dumb as hell when it comes to physics so I can`t really explain this one). Therefore the strongest muscle in the body is either one of the 2 I said before.
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Female 277
more than half of these things aren`t true. there isn`t even any proof or sources. except a website..
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Male 1,222
Infographics only make people more stupid
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Male 17
>TheSharpest

The tongue IS a muscle, a specialized one (thats why it can move in any way, not just contract like the rest of your muscles). What it says here is that it is the strongest, not the muscle that can make a greater force. Obviously the quadriceps can make greater force than the tongue because of its size, but if you measure the strength to size ratio the tongue is waaaay stronger. Basically, if your quadriceps were made of the same muscle fiber as your tongue you could jump a lot higher.
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Male 102
Talk about splitting hairs. Thanks for the human repro lesson guys...
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Male 4,807
I think they meant half the bone are in the hands and feet including the wrists and ankle... Infograph fail.
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Female 741
um..ya most of these facts are false.
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Male 4
"All the egg cells are formed during pregnancy, not over the period of a lifetime."

"that is wrong!!! a female is born with all her egg cells, they start maturing when puberty starts. so no they are not formed during pregnancy."

They may mature when puberty starts, but the claim that this infographic makes is that 7 million are produced over a lifetime. This is simply wrong. They are all created before birth. When I said that they are formed, I meant that they are created, not that they are fully mature.
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Male 1,764
The tongue isn`t even a goddamn muscle, FFS. The strongest muscle is either:
a) The quadriceps, and Angillion as mentioned, or
b) The massetter, which is weaker than the quadriceps but produces more strenght because it works on a very small lever (someone who knows more physics than I do should explain how this works).

Also, I`m too lazy to count but I doubt the one about the bones in your hands and feet being true.
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Male 94
I cant draw a straight line without a ruler. Does that make me not human?
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Male 336
just because I can differentiate between that many hues doesn`t mean I can tell the difference between navy and black when i wake up in the morning.
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Male 537
Isn`t this a misinformation thing? I got it in an email saying all the facts are wrong.
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Female 1,427
"450 miles of hair? That can`t be right...how much hair could you grow in a year? That means that in 75 years you grew 31,680 feet of hair per year. Maybe 450 feet..."

They`re talking about a combined length.

Each month your hair grows about 1/8-1/4 of an inch, give or take.

But how many strands of hair are on the human body? Legs, arms, back, feet, arm pits, groin, head, eyebrows, etc, all combined? About 5 MILLION.

And your leg hair/groin hair/pit hair occasionally grows faster than the hair on your head.

So all together, if you never cut any of your hair, never shaved, etc, from birth, then laid out each hair from end to end: about 450 miles.

THAT`S what they`re saying.
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Female 7
"All the egg cells are formed during pregnancy, not over the period of a lifetime."

that is wrong!!! a female is born with all her egg cells, they start maturing when puberty starts. so no they are not formed during pregnancy. every mensturation cycle a female has 4 egg cells, and only 1 matures, while the other 3 help the womb to prepare for the fertilization of the mature egg cell.
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Female 547
"The human eye is capable of differentiating between 10,000 different hues." Not my husband`s.
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Male 14
450 miles of hair? That can`t be right...how much hair could you grow in a year? That means that in 75 years you grew 31,680 feet of hair per year. Maybe 450 feet...
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Male 4
In a lifetime, the female body produces 7 million egg cells? If I`m not mistaken, that statement should be amended. While up to 7 million are present in the fetus at about 18 weeks into pregnancy, most of them waste away. This leaves about 1 to 2 million at birth, and only 300,000 by the time puberty starts.

All the egg cells are formed during pregnancy, not over the period of a lifetime.
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Male 12,365
[quote]I thought that babies did have kneecaps but they are made of cartilage, and only ossify between ages 2 and 6.[/quote]

That makes more sense to me, because I think walking would be a serious problem without any kneecaps at all.
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Male 12,365
[quote]And, is "her" really correct grammar? I was always taught that in a situation like this the correct thing to do is "his/her".[/quote]

It`s politically correct grammar - excluding male people is considered to be a good thing.

I favour adding another meaning to the plural pronouns, making them either plural or singular depending on context. The plural pronouns are already sex-neutral and it`s common for a woord to have multiple meanings dependent on context. I think it`s more likely to be used than trying to create new sex-neutral singular pronouns and inserting them into English.

But the safest way in society as it is at the moment is to explicitly exclude male people from consideration - that will attract the fewest complaints and it will be considered a good thing by more people.
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Female 277
I thought that babies did have kneecaps but they are made of cartilage, and only ossify between ages 2 and 6.
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Male 207
"Every human bends her finger 25 million times in a lifetime"...

Also, they should`ve said something like, "at least 25 million times..."

Or is it assumed that on the 25 millionth bend that we just drop dead? And like RobSwindol said, "what about humans who die young?"...did we forget about them?

Just because you die at the age of five you are no longer human? Or also the people who live past the average age...what is this "fact" based on? Considering everyone dies at different ages this doesn`t make sense.

And, is "her" really correct grammar? I was always taught that in a situation like this the correct thing to do is "his/her".


"The slash can replace the word `and` to join two nouns. By replacing `and` with a slash, you suggest that there is equal importance to both characteristics. Use these replacements in moderation to place greater emphasis where `and` may not d
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Male 12,365
Wouldn`t the strongest muscle in the human body be the quadriceps? The statement doesn`t say the muscle with the highest strength to size ratio.

The thing that impresses me the most about the human body is the degree of parallelism in the brain. Slow, simple processors and slow interconnects, yet so very powerful.
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Male 12,365
[quote]Dirty mouths![/quote]

Yes, very. Human bites are quite dangerous for that reason.

Something interesting and related...dogs` mouths are usually much cleaner than humans` mouths. Still dirty, but quite a lot less so. That`s quite remarkable when you consider what dogs eat and lick. I think it`s due to dogs having a really good immune system - they eat no end of bacteria, but nearly all of it is killed off.
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Female 126
Actually the tongue is made up of many different muscles and it isn`t the strongest. The jaw muscle is actually the strongest.
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Male 101
I heard that the jaw was the strongest muscle. someone is lying to me...
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Male 103
The tongue is not the strongest muscle, nor is it one single muscle; but 16 separate ones. Although it is controversial, the masseter muscle in the jaw is supposed to be the strongest relative to its size.
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Male 12,365
[quote]What does drawing a straight line have to do with the body?[/quote]

Maybe it`s down to the extremely fine motor control that humans have, probably related to extensive tool use. Other primates aren`t anywhere near as dextrous.

Although I think you`re right and it`s mind, not body.

Assuming it`s true, of course, which I don`t. A collection of "facts" on a webpage isn`t a reliable source.
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Female 71

@ Chibi_Ichigo
I heard we also have primitive taste buds in our stomachs and intestines, not just on the tongue
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Male 12,365
[quote]I foresee people complaining about "Every human bends HER finger 25 million times in a lifetime."

Don`t make a fool out of yourselves people, it`s correct grammar and they wanted to avoid the clunky "his or her". </Grammar Nazi>[/quote]

It`s an explicitly feminine pronoun.

It is therefore only correct grammar if all humans are female.

You have just argued that male people are not human.

Which may be both cause and effect of the change, which is now normal - it reflects and reinforces the exclusion of male people from consideration on a social level.

I argue that a little clunkiness in language is better than the deliberate exclusion of half of humanity from consideration. But then I`m not a feminist.
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Male 976
And Rob Swindol gets the award for ironic timing of post I didn`t see!
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Male 976
I foresee people complaining about "Every human bends HER finger 25 million times in a lifetime."

Don`t make a fool out of yourselves people, it`s correct grammar and they wanted to avoid the clunky "his or her". </Grammar Nazi>
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Male 2,528
"Every human bends her finger 25 million times in a lifetime"

So all humans are female now?

To which "finger" are we referring? Or are we to assume that all fingers are bent an equal number of times? Because that would seem a bit strange to me.

Are we including thumbs here?

And what about humans who die very young? Can one`s life expectency be gaged by how many times they have bent their finger so far?
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Male 124
"Enough Fat to produce 7 bars of soap." Right...North American eating habits have got to produce at least 3 times that.
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Male 497
the tongue really is strong !

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Female 986
I can only draw a straight line with the help of a ruler :(

...People who blink a lot make me nervous.

"There are approximately 2,000 taste buds in the human body" ...not just the tongue? Where else am I tasting things?
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Female 498
Dirty mouths!
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Male 26
What does drawing a straight line have to do with the body?
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Female 9,572
Not bad.
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Male 20,917
Link: A Crapload Of Facts About The Human Body [Pic] [Rate Link] - Damn, the human body is pretty incredible to be able to do all this stuff.
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