After reading the neuroscience of brain i found these interesting facts about the brain.
A1:
Information travels at different speeds within different types of neurons.
Not all neurons are the same. There are a few different types within the body
and transmission along these different kinds can be as slow as 0.5 meters/sec
or as fast as 120 meters/sec.
A2:
Your brain uses 20% of the oxygen that enters your bloodstream. The
brain only makes up about 2% of our body mass, yet consumes more oxygen than
any other organ in the body, making it extremely susceptible to damage related
to oxygen deprivation. So breathe deep to keep your brain happy and swimming in
oxygenated cells.
A3:
The brain operates on the same amount of power as 10-watt light bulb.
The cartoon image of a light bulb over your head when a great thought occurs
isn’t too far off the mark. Your brain generates as much energy as a small
light bulb even when you’re sleeping.
A4:
Nerve impulses to and from the brain travel as fast as 170 miles per hour.
Ever wonder how you can react so fast to things around you or why that stubbed
toe hurts right away? It’s due to the super-speedy movement of nerve impulses
from your brain to the rest of your body and vice versa, bringing reactions at
the speed of a high powered luxury sports car.
A5:
The human brain cell can hold 5 times as much information as the Encyclopedia
Britannica. Or any other encyclopedia for that matter. Scientists
have yet to settle on a definitive amount, but the storage capacity of the
brain in electronic terms is thought to be between 3 or even 1,000 terabytes.
The National Archives of Britain, containing over 900 years of history, only
takes up 70 terabytes, making your brain’s memory power pretty darn impressive.
A6:
The brain is much more active at night than during the day.
Logically, you would think that all the moving around, complicated calculations
and tasks and general interaction we do on a daily basis during our working
hours would take a lot more brain power than, say, lying in bed. Turns out, the
opposite is true. When you turn off your brain turns on. Scientists don’t yet
know why this is but you can thank the hard work of your brain while you sleep
for all those pleasant dreams.
A7:
80% of the brain is water. Your brain isn’t the firm, gray mass you’ve seen on
TV.
Living brain tissue is a squishy, pink and jelly-like organ thanks to the loads
of blood and high water content of the tissue. So the next time you’re feeling
dehydrated get a drink to keep your brain hydrated.
A8:
Scientists say the higher your I.Q. the more you dream.
While this may be true, don’t take it as a sign you’re mentally lacking if you
can’t recall your dreams. Most of us don’t remember many of our dreams and the
average length of most dreams is only 2-3 seconds–barely long enough to
register.
A9:
The brain itself cannot feel pain. While the brain might be
the pain center when you cut your finger or burn yourself, the brain itself
does not have pain receptors and cannot feel pain. That doesn’t mean your head
can’t hurt. The brain is surrounded by loads of tissues, nerves and blood
vessels that are plenty receptive to pain and can give you a pounding headache.
A10:
Neurons continue to grow throughout human life. For
years scientists and doctors thought that brain and neural tissue couldn’t grow
or regenerate. While it doesn’t act in the same manner as tissues in many other
parts of the body, neurons can and do grow throughout your life, adding a whole
new dimension to the study of the brain and the illnesses that affect it.
+ comments + 1 comments
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