Brains
SciShow Tangents
00:00
The Human Circulation Balance
In healthy adults, while resting, it's generally thought that around ten to 20 % of the volume of blood being pumped out by the heart goes to the brain. And a lot of brain studies use phemori, which is functional magnetic resonance imaging. It detects changes in blood flow when people are using their brains in different ways. But even though we've come a long way, we constantly face problems with brain measuring devices. So maybe to our future selves, f m ri will seem as quaint as the machine to weigh the soul.
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