人为什么会晕船?

One of the least pleasant things about going to sea is the chance of getting seasick. Some people are much more likely to suffer than others. If you've ever felt sick while traveling by car or plane, or on an amusement park ride, you may also be more likely to get seasick on a boat. Seasickness is caused by a conflict in the inner ear, which controls our sense of balance. Imagine you are inside the cabin of a rocking boat. Your inner ear feels your body moving up and down and from side to side with the boat. But because the cabin moves with you, your eyes see a scene that seems to be standing still. The brain is confused by these mixed signals and responds by releasing stress hormones, which can lead to nausea, vomiting and dizziness. Strong smells, such as diesel fumes and fish, can make things worse. Seasickness usually starts in the first 12 to 24 hours after setting sail and fades once the body gets used to the motion of the ship. It's rare for anyone to stay sick for more than the first couple of days, unless the sea gets really rough. If you do get seasick, take comfort: recovery is only a matter of time, and the survival rate is 100 percent! Here are a few tips to help ease the symptoms: - Drink plenty of fluids. Seasickness and the medicines used to treat it can cause dehydration and headaches. Drink water, low-acid juices like apple or carrot, or clear soup, and avoid milk and coffee. - Keep busy. Most people find that staying active takes their mind off feeling sick. - Stay on deck, even if it's raining. Fresh air often helps you recover faster, while the closed-in space below deck makes the boat's movement feel worse. - Carry a plastic bag. Knowing you have one can stop you from panicking. If you need to be sick over the side, check the wind first and stay on the side of the ship that is sheltered from it. - Think about taking motion sickness medicine. It usually works best if you take it about an hour before you set sail. And don't be embarrassed. Plenty of people get seasick, including experienced travelers, professional fishers, sailors and marine scientists.
出海最让人难受的事情之一,就是可能会晕船。有些人比别人更容易晕船。如果你坐车、坐飞机或者玩游乐设施时晕过,那么坐船时也可能比较容易晕。 晕船是内耳里的“冲突”造成的,而内耳掌管着我们的平衡感。想象一下你待在一艘摇摇晃晃的船舱里:你的内耳感觉到身体随着船上下起伏、左右摇摆;可是船舱是跟着你一起动的,所以你的眼睛看到的景象好像是静止的。大脑被这些互相矛盾的信号弄糊涂了,于是释放出压力激素,可能导致恶心、呕吐和头晕。 柴油味、鱼腥味这样的强烈气味,会让症状更严重。晕船通常在开船后的 12 到 24 小时内出现,等身体适应了船的晃动就会慢慢消失。除非遇上真正的大风浪,很少有人会晕上两三天以上。 如果你真的晕船了,也别太担心:恢复只是时间问题,而且“存活率”是百分之百!下面几个小建议可以帮你缓解症状: - 多补充水分。晕船和治疗晕船的药都可能导致脱水和头痛。可以喝水、苹果汁或胡萝卜汁这类酸度低的果汁,或者清汤,避免喝牛奶和咖啡。 - 让自己忙起来。大多数人发现,找点事做能转移注意力,不去想难受的感觉。 - 待在甲板上,即使下雨也一样。新鲜空气常常能让你恢复得更快,而甲板下面的封闭空间会让人觉得船晃得更厉害。 - 随身带个塑料袋。知道自己有袋子备用,就不会那么慌。如果非得在船边吐,先看看风向,待在船上背风的那一侧。 - 可以考虑吃晕船药。一般在开船前一个小时左右服用效果最好。 还有,晕船没什么好难为情的。很多人都会晕船,包括经验丰富的旅行者、职业渔民、水手和海洋科学家。