A closer look
Having a panic attack in the Middle Ages was apparently enough to get you set on fire. Early palmistry wasn't just about telling you you’d meet a tall, dark stranger; it was a high-stakes diagnostic tool for demonic possession. Manuals explicitly warned that a sweaty left palm indicated a pact with the devil. So, if you were just a naturally clammy person trying to survive a plague, congratulations—you were also a certified warlock.






