How many atoms are you made up of ?
It is hard to grasp just how small the atoms that make up your body are until you look at their sheer number: An adult is made up of around 7,000,000,000,000,000,000,000,000,000 (7 Octillion) Atoms. (1 Octillion= 1000 trillion trillion).
Body weight & blood vessels
500g Fat = 11km blood vessels When you gain 500gm of fat, your body makes 11km of blood vessels. This means your body must work harder to pump blood through all of these extra new vessels, straining your heart.
Fortunately, if you lose 500gm, your body will break down and re-absorb the unnecessary vessels.
Fortunately, if you lose 500gm, your body will break down and re-absorb the unnecessary vessels.
Largest Molecule? Chromosome 1
It contains around 10 Billion atoms A normal human cell has 23 pairs of chromosomes in its nucleus, each a single, very long, molecule of DNA. Chromosome 1 is the biggest to pack in the amount of information that is encoded in the molecule.
Digestive system
Our digestive acids are strong enough to dissolve zinc.
But cells in the stomach lining renew so quickly that the acids don't have time to dissolve it.
But cells in the stomach lining renew so quickly that the acids don't have time to dissolve it.
Eye muscles
The focusing muscles of the eyes move around 100,000 times a day to give your leg muscles the same workout, you would need to walk 80km every day.
How strong is human bone
8.6 tonnes - That's how much one cubic inch of bone can support - That is four times as much as concrete can support
Human bone is as strong as granite in supporting weight.
Human bone is as strong as granite in supporting weight.
Skin - Largest organ in the body
The skin is the largest organ in the body.
In an adult person, it covers about 20sq ft It constantly flakes away; each person sheds around 18kg in a lifetime.
In an adult person, it covers about 20sq ft It constantly flakes away; each person sheds around 18kg in a lifetime.
What could kill you in space
In movies, a human body explodes if it is pushed into space without a suit. But it's mostly fiction.
Although liquids do boil in a vacuum, your blood is kept under pressure by your circulatory system and would be just fine. It is lack of air that will kill you.
Although liquids do boil in a vacuum, your blood is kept under pressure by your circulatory system and would be just fine. It is lack of air that will kill you.
What shows you are sleep deprived
You are sleep deprived if you fall asleep within 5 minutes of hitting the sack.
The ideal is between 10 and 15 minutes, meaning you're still tired enough to sleep deeply, but not so exhausted you feel sleepy during the day.
The ideal is between 10 and 15 minutes, meaning you're still tired enough to sleep deeply, but not so exhausted you feel sleepy during the day.
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