Home Health 15 Facts About Human Biology You Didn’t Know

15 Facts About Human Biology You Didn’t Know

The human body is just fantastic and there’s some truly amazing things we can guarantee you didn’t know about it. We’ve gone ahead and listed 15 facts about the human biology you didn’t know here. These range from useful facts to completely useless facts but they will all amaze you nonetheless. Enjoy!

An adult is made up of around 7,000,000,000,000,000,000,000,000,000 (7 octillion) atoms

Via frabz.co
Via frabz.co

We actually have 9 senses, not just 5: Vision, Hearing, Smell, Taste, Touch, Balance, Temperature, Proprioception (spatial body awareness, aka why you can touch your nose with your eyes shut) and finally, Pain

Via sixfootlobster.blogspot.com
Via sixfootlobster.blogspot.com

It’s still not scientifically certain why humans yawn

Via giphy.com
Via giphy.com

The brain works harder while we are asleep than during the day when we are awake

Via memeblender.com
Via memeblender.com

The liver has over 500 different functions

Via giphy.com
Via giphy.com

The lungs contain over 300,000 million capillaries (tiny blood vessels). If they were laid end to end, they would stretch 2400km (1500 miles)

memegenerator.net
memegenerator.net

80% of your brain is water

Via giphy.com
Via giphy.com

The acid in your stomach is strong enough to dissolve razorblades

quickmeme.com
quickmeme.com

Sneezes, more often than not, exceed 100mph

Via giphy.com
Via giphy.com

It takes 17 muscles to smile and 43 to frown

Via giphy.com
Via giphy.com

Via nicktumminello.com
Via nicktumminello.com

Your feet account for one-quarter of all the bones in your body

Via memesnba23.blogspot.com
Via memesnba23.blogspot.com

In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil

Via giphy.com
Via giphy.com

Via tumblr.com
Via tumblr.com

Human bone is as strong as granite in supporting weight. A block of bone the size of a matchbox can support 9 tonnes – that is four times as much as concrete can support

Via forums.steroid.com
Via forums.steroid.com



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