Homesickness refers to.

Homesickness is feelings and thoughts about hometown.

Attachment to the homeland is the same and eternal emotion of human beings. Don't wanderers, drifters, vagrants and immigrants who are far away from home miss their hometown? Homesickness is one of the themes written by literati. In the poems of Yu Guangzhong, Beijing Normal University and Xi Murong, in San Mao's articles, and in the piano sound of piano prince Richard Clayderman, it is also the name of this film. There are many beautiful sentences describing homesickness in the past dynasties, the most classic of which is "I have a bright line at the foot of my bed, is there frost?" From the Tang Dynasty poet Li Bai. Looking up, I found that it was moonlight, sinking again, and I suddenly thought of home. "

Homesickness or homesickness refers to "the pain a sick person feels because he is not in his hometown" or "the fear of never seeing his hometown again"

Swiss doctor Jean-Jacques Harder (1656-1711) first put forward the name of this disease. He put the Greek root (ν? στο? Nostos = one's hometown = hometown. λγο? = algos = pain/longing = pain/longing) coined this new word.

Another version was created by Johannes Hofer (1669- 1752) in 1688. Later, the new word spread so successfully that people forgot its origin. When the word entered daily life, its original meaning-referring to a disease-had been lost. )

From the late17th century to the late19th century, doctors will diagnose and treat homesickness. In other languages, the words are maladie du pays (rural disease, French), Heimweh (family pain, German) and el mal de corazón (heart pain, Spanish).

Death cases have been heard from time to time, and soldiers can sometimes be successfully cured by being dismissed from their posts and sent back to their hometown. 1978, Robert Hamilton (1749- 1830) reported a case of homesickness in a soldier.

Homesickness is sometimes like an epidemic. In the army, homesickness is less common when you win a battle. On the contrary, homesickness is more common when the war is tight. In the Chu-Han War in history, Xiang Yu and his army fell into a trap. China soldiers sing Chu songs in order to arouse Chu troops' homesickness and disintegrate their fighting capacity, which is the origin of China's idiom "besieged on all sides".

From 65438 to 0850, homesickness was not regarded as a specific disease, but a symptom or a stage of a pathological process. It is considered as a sign of depression or suicidal tendency. However, until the American Civil War, homesickness still existed among soldiers.

In the1870s, the interest in treating homesickness as a medical category almost disappeared. Most people regard the reduction of this disease as a good thing and the result of progress. However, some people lament the loss of the root cause-feelings for their hometown. Of course, homesickness did not disappear with its medical treatment.

Symptom homesickness is no longer a medical disease, but it still has very real physiological symptoms in essence. These symptoms may be, but are not limited to: chest tightness, tight throat, chest pain, and will cause despair.