As a professional skeptic, I'd be hard pressed to trust a doctor who thinks my right ankle aches because my ruling planet Jupiter is in retrograde.

Image courtesy NASA
But that's just me, and medical astrology—a fairly common diagnostic tool during medieval times—is still alive and kicking in several parts of the world.
In fact, doctors at a university in Delhi, India, are about to complete a five-year study of local people's medical histories that they say links the positions of the planets to people's health.
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