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[Headlines] (HL-의학/건강/운동) Are You Getting Enough Sleep?
최고관리자  |  17-05-18 07:52

We spend about one-third of our lives asleep. This may sound like a lot of time, but it is not wasted. Our bodies need sleep to stay healthy. Not getting enough sleep, or as we sometimes say shut-eye, can make us sick. The immune system protects the body from diseases and infections. Not getting enough sleep hurts this protective system. The Mayo Clinic is a nonprofit research hospital in the United States. Its website explains that when we sleep our bodies release proteins that support sleep and help us fight infections. They add that infection-fighting antibodies and cells are reduced during periods when you don't get enough sleep. A new study from the University of Washington in the U.S. seems to confirm this. Dr. Nathaniel Watson was the lead writer of the study. He is also co-director of the university’s Medicine Sleep Center at Harborview Medical Center. Watson says his study shows that the immune system works best when the body gets enough sleep. For the study, Watson and his team studied 11 pairs of identical twins. This is an important difference from other sleep studies. Other research did not study identical twins. The identical twins, however, had different sleep patterns. Researchers found that the twin who slept less had a weaker immune system. Watson says his study showed for the first time that a long-term lack of sleep shuts down parts of the immune system. He says parts that move white blood cells around the body are affected. White blood cells fight infection in the body.
* one-third = 3분의 1/ asleep = 잠이 든, 자고 있는/ shut-eye = 잠(sleep)/ immune system = 면역 체계/ infection = 감염; 전염병/ antibody = 항체/ identical twins = 일란성 쌍생아/ sleep pattern = 수면형태/ shut down = 정지시키다; (공장, 가게의) 문을 닫다/ white blood cell = 백혈구

Watson adds that the results confirm a finding of other sleep studies. They found that when sleep-deprived people are given a vaccine, fewer antibodies are produced. If sleep-deprived people are then exposed to a virus, he says, “they are more likely to get the virus.” Watson’s study provides more evidence that sleep is important to “overall health and well-being.” And sleep is especially important to immune health. The researchers published their findings in the journal Sleep. To stay in good health, experts at the Mayo Clinic say that adults should get seven to eight hours of sleep. Teenagers need nine to 10 hours. And school-aged children may need more than 10 hours of sleep a night. Experts say the quality and quantity of our sleep becomes poor as we age. This happens because brain circuits that control sleep slowly begin to weaken. Experts say the process begins in our 30s. By the time we reach our 50s, the average person has lost 50 percent of their ability to have a restful sleep. These people also have trouble falling asleep and staying asleep through the night. From middle age on, they say these problems only get worse, and they can affect our health.
* add that ~ = ~라 덧붙이다/ confirm = (특히 증거를 들어) 사실임을 보여주다[확인해 주다]/ finding = (조사・연구 등의) 결과[결론]/ sleep-deprived = 잠이 부족한/ vaccine = (예방) 백신/ be exposed to ~ = ~에 노출되다/ overall = 종합[전반]적인, 전체의/ school-aged = 학령/ quality and quantity = 질과 양/ brain circuit = 뇌 회로/ restful = 편안한, 평화로운/ from ~ on = ~부터 계속[죽]/ middle age = 중년기(45~60세 사이의 연령대)