Letters to the Editor
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I've never heard a fat man say "I am doing everything possible to lose weight and I can't" but women say this all the time.
Besides this women seem much better able to live a long time with disabling obesity than men do. It seems they have evolved a mechanism which keeps their hearts strong even when they don't exercise. This is no doubt a result of the fact that there is a huge benefit from energy conservation, fat storage, and therefore from inactivity during pregnancy and nursing.

