How many neurons are in the human brain?
The human brain contains about 86 billion neurons.
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- How often do we blink?
“People blink about 15 to 20 times a minute.”
Reference: American Academy of Ophthalmology
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Chameleons can move their eyes in two different…
Chameleons can move their eyes in two different directions at the same time.
How much energy does the brain use?
The brain makes up only about 2% of body weight but uses about 20% of the body's energy.