How much do you really know about your body? Check out these 13 amazing biological facts to find out!
1. Your bones are as strong as granite pound for pound.
A block of bone the size of a matchbox can support nine tons – four times as much as concrete.
Your bones protect your internal organs and and support your muscles so you can stand, sit, walk, run, and much more. A healthy calcium intake is important to healthy bones.
2. The average Westerner turns 50 tons of food into energy in his or her lifetime.
That’s about 5.5 pounds every day. How does your diet measure up?
3. Each of your kidneys contains 1 million individual filters.
And all the waste that passes through them comes out in your urine. Be careful what you put into your body. You don’t want these vital organs to get overworked and shut down.
They filter more than 2 pints of blood per minute, and expel up to 2.5 pints of urine per day.
4. The muscles in your eyes move around 100,000 times a day.
To give your leg muscles the same workout, you would need to walk 50 miles.
According to Silverstein Eye Centers, “The muscles of your eye are the fastest in the human body. Their ability to react to external behavior and commands sent from the brain takes .01 percent of a second! This movement is controlled by six muscles located around your eye that expand and contract with intricate coordination for smooth, quick eye control. Even now, as you read, healthy eyes will perfectly scan left to right and down the page, rapidly transmitting information to your brain.”
5. In 30 minutes, the average body gives off enough heat to boil half a gallon of water.
Your body gives off heat in four different ways
- Touch (conduction)
- Emission (radiation)
- Circulation (convection)
- and sweat (evaporation)
6. One of your blood cells can make a complete circuit of the body in as little as 60 seconds.
The part of your blood that isn’t blood cells is called plasma. It’s a yellow liquid that is 90% water.
7. Your brain can read up to 1,000 words per minute.
According to College Info Geek, “The average fixation takes 225ms when you’re reading silently, though this is an average – the range is typically anything between 100 and 500ms.”
8. Your stomach acid is strong enough to dissolve zinc.
Fortunately, the cells in your stomach lining are created faster than they are destroyed.
9. Inside your belly button are enough bacteria to form an ecosystem the size of an entire rainforest.
“There is a surprising lack of awareness on the public’s part as to what can accumulate in a belly button,” Dr. Claire Cronin of the Massachusetts Medical Society told the Atlantic. “The volume of material increases as the patient ages and, just like their arteries, can harden. I like to think of it as a cache of a lifetime of little treasures… Most patients have not received adequate instruction on proper umbilical hygiene. It has not received the same level of attention that the area behind the ears has… There is a technique to cleaning the belly button. It involves soap and water and gentle probing… Alcohol should not be used, in order to not disturb the delicate pH balance of the area.”
10. People have been known to lift cars during an adrenaline rush.
Unfortunately, our muscles’ power is limited to protect our tendons and joints.
11. A full head of human hair is strong enough to support 12 tons.
As Bald Gossip reports, “The human hair is majorly made up of protein. The protein it contains is keratin. This protein gives the hair its strength. A lot of haircare products have keratin added to them for extra strength and healthy hair.
“When heat is applied to the human hair, moisture is removed from the hair. So, the hair cuticles get brittle and dry when too much heat is applied to the hair. When hair is damaged by heat, the hair starts to fall off when you are brushing it. This is one of the causes of hair loss. It is best to avoid exposing your hair to too much heat so it remains hydrated and it retains its elasticity.”
12. If the human brain were a computer, it could perform 38 thousand-trillion operations per second.
The world’s most powerful supercomputer can manage only .002% of that.
13. Every day, your heart creates enough energy to drive a truck for 20 miles.
According to an educational resource by Fay, J. & Sonwalkar, “Under normal conditions, the heart beats 75 times per minute, delivering about 5 liters per minute, but its flow can be five times greater under extreme conditions. The peak blood pressure in the heart is about one-sixth of an atmosphere, and the heart develops about two watts of mechanical power.”