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‘Super-agers’ study may reveal secrets to staying young

Mary Helen Abbott, 77, paints her lips bright pink, still smokes the occasional cigarette, keeps up on all the gossip at the retirement home and wears a short skirt to fitness class. She giggles as the aerobics instructor shouts—”Swagger! Like you are going to meet someone famous!”—then she and a dozen seniors throw shoulders back, lift their knees high and …