Have you weighed your brain recently?

I saw this today:

BBC News:  Big head ‘may protect against dementia’.

And couldn’t help thinking of several of the articles I’ve been coming across in the Journal of Mental Science, such as John Thurnam’s  On the Weight of the Brain and the Circumstances Affecting It from April 1866, or a statement by another writer in 1877 that

“the brain weight is lowest in idiocy, gradually rising through brain wasting, general paralysis, senile dementia, simple dementia, recent insanity up to chronic mania, in which it is highest.”

Amazing:  it’s as if the weight of the brain increases with the number of thoughts that are running through it.

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