How It Works
human brain

Top 5 Facts: The brain

human brain

1) Blood vessels

There are a staggering 100,000 miles of blood vessels in the brain, that is enough to wrap around Earth four times.

2) Source of headaches

A headache actually occurs in blood vessels around the brain, not the brain itself. The brain cannot feel any pain whatsoever.

3) Fat content 

Your brain is 60 per cent fat – which helps carry water and protein through membranes to brain cells, keeping everything ticking over.

4) Power usage

The brain is quite greedy; it uses about 20 per cent of the power in your body that is generated from food consumption.

5) Trillions of connections

The brain has trillions of connections – much more than the internet, and more than can currently be counted.

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