英語聽力文摘 痛苦的注射
Painful Injections
相信大家都有過去醫(yī)院打針的經(jīng)歷吧?不論你是因?yàn)樯∵€是去注射疫苗。小孩子尤其害怕打針，一看到針就會使出吃奶的勁哭鬧。這下著急的還有護(hù)士跟孩子的父母，想盡辦法讓孩子安靜下來。
Sometimes people write to us here at Moment of Science to complain that all we ever talk about are quasars or neutrinos or something. Where’s the useful stuff?
Well, here’s something for you practically-minded listeners. Anybody who has a baby knows how hard it is for the little tyke to get a shot. Hard for the baby who, even though shots are necessary, still feels the ouch–and hard for the mother or father who would like to keep pain away from their little one. What to do?
A new study has shown that the pain infants experience can be reduced by having them do something else at the same time–specifically, having them nurse. Babies who were in the act of nursing when they were given a quick injection showed fewer signs of distress than those who weren’t. Of course, you can’t ask a baby what he or she feels, so researchers used the method adopted by most moms and dads anyway: babies who cry less are probably more happy.
So why does nursing reduce the experience of pain? Presumably it’s a distraction. It may also be because nursing just feels good, mixing in pleasurable sensations with the painful ones. The net result is something like cutting your finger on the winning lotto ticket. Ouch, your finger says, at the same time as your brain is saying Whoopee! And the ouch doesn’t bother you as much.
Doctors have also found that simple skin-to-skin contact with babies reduces their experience of pain. This effect, however, can take up to fifteen minutes to kick in, whereas the nursing effect is much more immediate.
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