DRAWING OF BLOOD
Working on the basis that fire,
water, earth and air controlled
the humours, physicians
believed the body would be
‘balanced’ by removing ‘bad
blood’ (they thought blood
was static and stagnated in
certain parts of the body).
Ailments were therefore
treated by clamping leeches to
the patient’s skin (sometimes
to the eyes). Over time,
physicians themselves were
nicknamed leeches.
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