The rare medical condition of sweating blood or blood-tinged sweat, which can occur with extreme fear or stress.
From Greek 'haima' (blood) + 'hidrosis' (sweating). The term combines the Greek roots for these two bodily processes to describe an alarming but rare phenomenon.
This condition actually appears in historical accounts of martyrs and people under extreme duress, and there's been serious medical study about whether it's real or psychological—it's a great example of a physical symptom that blurs the line between body and mind!
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