in patients with depression, insomnia and depression often exist at the same time. Sleep disorder is mostly manifested as early wake-up, light and unstable sleep, easy to wake up, and still feel tired after waking up. Depression is the most severe in the morning. The total amount of sleep, the fourth stage slow-wave sleep and REM sleep during the depression attack were all reduced, and the phase transition was frequent during sleep. Insomnia is common in all clinical subjects. In terms of symptoms, people with insomnia may have more symptoms than any clinical one. In recent years, people's research on sleep disorders has become increasingly in-depth, forming a relatively independent discipline - sleep medicine.
Is insomnia related to depression?
A considerable number of patients with depression have insomnia, especially various forms of insomnia. The most common is terminal insomnia. End-stage insomnia is also called early wake-up. Compared with previous sleep habits or other people, patients wake up 2 to 4 hours in advance and it is difficult for them to fall asleep again after waking up. Many patients also have insomnia in the middle stage, which means they have pseudo-sleep at night, which is prone to wake up, and it is difficult to fall asleep again after waking up. Of course, there are still many patients with difficulty falling asleep in clinical practice, especially those with anxiety symptoms. In severe cases, multiple insomnia may occur at the same time, while in some cases, they will not sleep all night.
In fact, within a certain period of time (about 24~36 hours), the activity of patients with depression increases. During this time, they neither need to sleep nor feel tired. However, unipolar depression is different. They often wake up early, and their total amount of sleep is gradually reduced in the day. Sometimes they wake up in a bad mood, feel weak and tired. However, some people with depression experience symptoms of excessive sleep.
experiments have proved that patients with depression sleep differently than normal people. As for REM sleep, normal people usually sleep for 90 minutes, while patients often only sleep for 45 minutes. According to literature records, the sleep of patients with depression is short REM latency sleep. REM time in patients with depression tends to be prolonged, while NREM sleep is relatively shortened and lighter.
What are the symptoms of depression ?
Many people with depression eat very little. Even the word "food" can make them sick. Even if it is very delicious, I often refuse to eat or chew, claiming that I don’t even have the energy to buy groceries, cook or even eat. When you are depressed, you can see signs of sadness; lose interest in all activities and have no sense of joy; sleep is not guaranteed (bad sleep, you will wake up in the middle of the night, wake up in the morning, and then you will never fall asleep), or on the contrary, you tend to oversleep; slow movement, less activity, or frequent anxiety and irritability (sometimes the two alternately); loss of appetite and weight loss (or excessive appetite and weight gain); fatigue and lack of enthusiasm; pessimism about yourself, blame yourself, think that your existence is meaningless, etc.
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