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From this morning's Science Times--
You’re Sick. Now What? Knowledge Is Power:
"For some people, more information makes them wackier,
while others get more relaxed and feel more empowered.”

Actually, today's whole special issue is about Decoding Your Health.
Of particular relevance to this class is another article,
Searching for Clarity: A Primer on Medical Studies,
which says that the problem in such studies "is not so much
the differences that are known. Instead, it is the differences
that scientists are not aware of."