Food and oxygen pass easily from mother to fetus(an unborn baby). Now it seems that fleeting sadness or happiness is also【B1】______to an unborn baby. Stress or depression in pregnancy can【B2】______a fetus, but less is known about the【B3】______of transient emotions. To【B4】______, Kazuyuki Shinohara and colleagues at Nagasaki University in Japan showed 10 pregnant volunteers a cheery 5-minute clip from the musical The Sound of Music. Another 14 watched a tear-jerking 5 minutes from The Champ. Each clip was sandwiched between two 'neutral' samples【B5】______the team could【B6】______any changes in fetal movements against a baseline. The women listened to the films through headphones to【B7】______that only the effect of their【B8】______, not the sounds, were being measured. 'Fetuses can hear by the last three months,' says Shinohara. The team【B9】______the number of arm, leg and whole body movements【B10】______ultrasound and found that during the happy film clip the fetuses moved their arms【B11】______more than when the pregnant women watched a neutral clip.【B12】______, the fetuses of sad women moved their arms less. What makes the【B13】______of happy mothers wave isnt clear.【B14】______, such movement is a(n) 【B15】______of a working nervous and motor system, says Alexander Heazell at the University of Manchester, UK. He says the study offers us insights into how【B16】______influences affect fetuses. Shinohara suggests that sadness【B17】______more of the 'fight or flight' hormone, which redirects blood away from the uterus. The fetus diverts the reduced blood【B18】______to its brain and heart and away from its limbs.【B19】______its too early to use the study to【B20】______women. 【B1】