睡觉爱做梦，这件事再平常不过。但有些人平时睡觉总是反复做梦，甚至有的时候会突然醒来，心脏还会怦怦跳。这是怎么回事？又有什么方法可以改善睡眠质量呢？为何我们会反复做梦？睡眠中有一个时期叫做快速眼动期（REM），此时身体处于最活跃的状态，呼吸和心率都会变快，同时我们也容易做梦。
If stress and anxiety can cause such strange and often upsetting dreams， it should come as no surprise that more serious mental health conditions can similarly interrupt your sleep. Bipolar disorder is known to cause vivid or bizarre dreams in some people， according to WebMD. And a study of Vietnam veterans found that 52 percent of combat vets with post traumatic stress disorder had nightmares fairly often， compared to only 3 percent of civilians， according to the U.S. Department Of Veterans Affairs. If you find yourself experiencing nightmares or very vivid dreams frequently， considering discussing your sleep with your doctor. Seeking treatment for both of these conditions can improve the quality of your sleep.如果压力和焦虑能导致令人不安的怪梦，那么更严重的心理健康问题同样会干扰你的睡眠，这也不足为奇了。
最近睡眠不太好，晚上翻来覆去的，好不容易睡着了又做梦，而且做的梦也没有梦到人，但是在梦里感觉有人掐自己，掐得喘不过气来，而且直接压在身上很重又翻不过身，怎么努力都醒不来，而且感觉像真的一样。经过一番挣扎过后，醒来全身冒汗…。不知道这种情况可有得解？
