#brain circuitry

[spencerhodo]

[breezingby]

Think retirement is smooth sailing? A look at its potential effects on the brain

Emerging research suggests that retirement could lead to a decline in your cognitive function, says gerontologist Ross Andel. Anyone who’s retired or thinking about retirement should read this to learn more.

[jingszo]

All our organs have running costs, but some are cheap and others expensive.

Bones, for example, are relatively cheap. Although they make up around 15% of your weight, they only use 5% of your metabolism.

Brains are at the other end of the spectrum, and at about 2% of typical human body weight, running them uses around 20% of our metabolism. And this without doing any conscious thinking – it even happens when we’re asleep.

This doesn’t really answer the ultimate question – how did humans manage to break through the brain-energy ceiling? As so often in evolution, the answer must lie in ecology, the ultimate source of energy. To grow and maintain a large brain – whatever social, cultural, technological or other things it is used for – requires a dependable and high quality diet.

Human intelligence: how cognitive circuitry, rather than brain size, drove its evolution

The human brain uses up 20% of the energy we consume.

[superpte]

LOGOS: Brain Elements

The LOGOS Sings of Elements Of Brain Simplified Into Discourses The Logos started to dominate Greek philosophy with Heraclitus (circa 500 BCE). What’s the Logos? The discourse. Correct discourse, namely, well, logical. Greek science discovered around 500 CE that much more of the universe responded to discourse (logos) than to the gods. However, during the Peloponnesian War, the Athenian army was…

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