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。
1.梦境的影响有个实验，是让被试者分别看到自己和别人的梦境，然后告诉他们这两个场景都代表着什么。结果发现，当人们看到自己的梦境时，会有一种“我就是那个人”的感觉；而当人们看到别人的梦境时，则没有这样的感受。
一位早期移民到美国的朋友在和我聊天时，说自己回到越南，发现亲戚的房子比自己好太多，自己在美国居住的地方远不及他们。但当亲戚问到自己在美国情况时，她说在美国很好，那里有很多机会。留在美国，是因为她有一个美国梦。 那么究竟什么是美国梦呢？为什么美国梦能引导着无数人来到这片土地？
