Dreams are images, ideas, emotions, and sensations that occur the mind during sleep.
Nightmares (கொடூர கனவுகள்) are vivid and terrifying dreams from which the person wakes up and is able to describe a detailed, horrifying, often bizarre dream plot. Usually, the dreamer has difficulty returning to sleep after a nightmare. Nightmares are more common in children. Contrary to popular belief, frequent nightmares in children do not suggest underlying psychopathology (உளவியல் கோளாறு). Nightmares are commonly seen in post-traumatic stress disorder (PTSD) (உளவியல் அதிர்ச்சி பின் விழைவு). Persons with PTSD generally report awakening from dreams that involve reliving the trauma. In these dreams, they experience strong emotions, such as rage, intense fear or grief, that would have been appropriate reactions to the original traumatic event. Nightmares can also be symptoms of more severe psychiatric disorders such as Depression (மனச்சோர்வு), schizophrenia (மனச் சிதைவு நோய்), panic disorder (பேரச்சக்கோளாறு), addiction (போதப் பொருமள் அடிமைக் கோளாறு) etc.
Night terrors (இரவு அலரல்) are nocturnal episodes of extreme terror and panic that occur early in the sleep period.They are associated with autonomic discharge, confusion and vocalizations, often a “blood-curdling” scream. Persons with night terrors start screaming while asleep. They are difficult to wake up, and if woken up, they are confused and disoriented. They go back to sleep after a while in the morning they cannot recall anything that happened during the night. Night terrors are often associated with drug abuse and bipolar affective disorders (இருதுருவ உணர்சிக் கோளாறு).Epilepsy (மூளை அதிகிளர்ச்சி / கால் கை வலிப்பு) during sleep can mimic nightmares, nigh terrors or REM behavior disorder.
Some people suffer from REM behavior disorder (RBD) (துரித கண் இயக்க நடத்தை சீர்குலைவு) act out their dreams. They physically move limbs or even get up and engage in activities associated with waking. Some engage in sleep talking, shouting, screaming, hittting or punching. Some even jump or fall out of bed while sleeping! For most people, their bodies are still even when they are having vivid dreams in which they imagine they are active. But, persons with RBD lack this muscle paralysis, which permits them to act out dramatic and/or violent dreams during the REM stage of sleep. The good news is that this disorder is very easily treatable with simple medicines.
Therefore, it is important that disorder of dreaming (கனவுக் கோளாறுகள்) are properly diagnosed by a neuro psychiatrist (மூளை-மன நல மருத்துவர்) and treated early before other complications set in.
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