Why have you been having nightmares since you came back from Thailand?

It should be caused by your fatigue after traveling. Nightmares are caused by the feeling of palpitation or palpitation, and these two kinds of palpitations will correspondingly cause two kinds of nightmares: being chased and falling (caused by palpitation illusion caused by hanging one's heart and sinking one's heart). In short, all dreams are hallucinations caused by the stimulation of objective things, that is, dreams, like all psychological activities, are reflections of objective things in the human brain. For example, the dream of finding a toilet or inexplicable anxiety is an illusion caused by the stimulation of objective things such as urgency. I didn't know that my anxiety in my dream was caused by urgency until I woke up and found urgency. The thin quilt on a cold night is caused by the repeated stimulation of cold and objective things all night. It was not until I woke up and felt cold that I realized that the cold in my dream was caused by the thin quilt on a cold night, and so on. It's just that human beings have an innate misunderstanding. When they wake up from a nightmare and feel palpitations, no one will conclude that the nightmare is caused by palpitations, but they all mistakenly think that terrible nightmares cause terrible palpitations! For example, I suffered from neurasthenia when I was young. During the day, my jitters recur. I had a nightmare of being chased and attacked all night while sleeping. Every time I wake up from a nightmare, I feel bouts of palpitations. I didn't know that my nightmare was caused by a rapid heartbeat. Because I really couldn't stand the pain of nightmares, I went to the hospital to see a doctor. The doctor gave me some sleeping pills, which can relieve my nervousness. After taking the medicine, I didn't have palpitations that day, so I fell asleep.

Palpitation is a symptom of cardiovascular disease, which often occurs in healthy people. Too tired, frightened, stressed during the day, watching horror movies and suddenly engaging in strenuous exercise are easy to happen, and it is easy to have nightmares when sleeping. For example, as long as I feel flustered after suddenly engaging in strenuous exercise during the day, I will definitely have nightmares when I sleep that night.