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Dear Editor - I'm delighted that Minerva reminds us once again that
psychological well-being depends on physical well-being (BMJ issue 7241,
page 1086) - it can't be done too often. But she might have given the
attribution to the
person who first (so far as is known) formulated the notion some 1900
years ago - Juvenal, in Satire no. 10, line 356. But I wouldn't be
surprised if the idea was around a long time even before that.