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People born in autumn live longer than those born in spring and are less likely to fall chronically (慢性) ill when they are older
People born in autumn live longer than those born in spring and are less likely to fall chronically (慢性) ill when they are older
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2008-01-17
1.5K+
问题
People born in autumn live longer than those born in spring and are less likely to fall chronically (慢性) ill when they are older, according to an Austrian scientist. Using census (人口统计) data for more than one million people in Austria, Denmark and Australia, scientists at the Max Plank Institute for Demographic (人口统计的) Research found the month of birth was related to life expectancy over the age of 50. Seasonal differences in what mothers ate during pregnancy (孕期) , and infections occurring at different times of the year could both have an impact on the health of a new-born baby and could influence its life expectancy in older age.
" A mother giving birth in spring spends the last stage of her pregnancy in winter, when she will eat less vitamins than in summer, " said one of the scientists. "When she stops breast-feeding and starts giving her baby normal food, it’s in the hot weeks of summer when babies have tendency to infections of the digestive system. " In Austria, adults born in autumn lived about seven months longer than those born in spring, and in Denmark adults with birthdays in autumn outlived those born in spring by about four months. In the southern hemisphere, the picture is similar. Adults born in the Australian autumn lived about four months longer than those born in the Australian spring. The study focused on people born at the beginning of the 20th century, using death certificates and census data. Although nutrition (营养) at all times of the year has improved since then, the seasonal pattern persists.
People born in autumn live longer than those born in spring because______.
选项
A、a mother giving birth in spring has less nutrition during her pregnancy
B、a mother giving birth in autumn eats more vitamins during the last stage of her pregnancy
C、a baby born in spring receives no protection from infections
D、a baby born in autumn is never subject to any infections
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/tDLC777K
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