Word: cardiovascular
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Dates: during 1940-1949
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...Surprisingly, older men make excellent civil air pilots. Under high-altitude flying conditions (reduced oxygen pressure), oldsters actually stand up better than youngsters: they are less likely to faint or collapse (apparently because they have more stable cardiovascular systems), suffer less loss of memory. With glasses, McFarland believes, many pilots up to 60 can pass the strict flying vision tests; one big airline has 100 pilots over...