The supermarket shop is perhaps not to be included in this: squeezing the Charmin is not really a social activity enjoyed by many.

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One of these molecules, resveratrol, is found in red wine which created excitement among those who think that a wine-rich diet is part of the explanation for the healthy old age apparently enjoyed by many who live in southern Europe.

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It's a convivial activity, enjoyed by friends and families drawn together by a delicious, healthful meal in which the cooking is spread among many.

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