人们很少注意吞咽方面的事,但在口渴时,它在控制液体摄取的过程中却发挥着微妙的作用。澳大利亚墨尔本莫纳什大学的Michael Farrell及其团队的研究表明,当人们在脱水时,吞咽会变得困难;如果喝水过多,吞咽会更加困难,从而阻止人们继续喝水。当人们过度口渴时,大脑扫描表明吞咽动作与特定脑区的更多活动相关联,其中包括负责 People pay little attention to swallowing, but when it’s thirsty, it plays a subtle role in controlling fluid intake. Studies by Michael Farrell and his team at Monash University in Melbourne, Australia, have shown that swallowing can become difficult when people are dehydrated, swallowing can be more difficult if they drink too much, and people are prevented from continuing to drink. When people are thirsty, a brain scan shows that swallowing is associated with more activity in a particular brain area, including the