What numbers describe our brain? We lose one neuron per second!


The brain is a fascinating organ, like the others, of course. Head Squeeze has created a interesting video in which we learn something new about “za” brain. Firstly, you need to know that the Human Brain Project has created BigBrain, a 3D map of a human brain. Now that’s cool.

Now the numbers:
-the brain has a mass of about 1.4kgs (3.08 lbs), about 2% of the body mass
– it consists of about 60% white matter and 40% grey matter
– it consumes about 20% of the oxygen you need and about 90% of that oxygen goes to the grey matter
– the cerebral cortex is only 4mm thick and covers a 2500 square millimeters area, like an unfolded newspaper
– the brain can make 10 million billion calculations
– the brain loses about 2 grams of mass every year after the age of 25 making people who like longer than 70 – 80 years susceptible to dementia, schizofrenia and other brain degenerative diseases
– we lose 1 neuron each second
– good news: new neurons are also created, but no numbers are available

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