Where is our consciousness when we sleep?

Saturday, 16 April 2022

We as humans generally often do activities during the day and rest to sleep at night to collect energy for the next day's activities. Yes, of course sleep is really needed by humans, because not only our bodies are tired after a day's activities, the mind and some human organs such as the heart and others also really need rest when we sleep.

(Source image)

Then has it ever crossed your mind where is our consciousness when we sleep?

First, let's discuss what is meant by consciousness. Awareness is a person's alertness to events that occur in the surrounding environment.

While sleep is a physiological process that cycles alternately with longer periods of wakefulness. During sleep, the brain is able to process information effectively and make decisions and during sleep the brain is also busy compiling new memories and strengthening previous memories, then connecting the two.

With sleep we can help the brain work in compiling memories and vice versa with sleep can make the ability to form new memories down by up to 40%.

Sleep stages

Humans sleep through several stages. First, people who are still awake, their EEG recordings display a pattern of fast activity with low amplitude which then turns into slow delta waves with high voltage, it is an EEG pattern when the person has fallen asleep.

During this stage of sleep awareness will decrease and this sleep stage is replaced by the REM (rapid eye movement) sleep phase which marks the occurrence of dreams when the person begins to wake up.

The second stage, sleep in the form of a rhythmic spike in EEG activity. In the third stage, there are a number of very low frequency delta waves, and the coil pattern is still ongoing. And the last stage is the deepest stage of sleep, when a person sleeps and is very difficult to wake up.

Conclusion

In this case, it can still be concluded that the human brain continues to do its job when humans sleep. The human brain still stimulates the words heard while sleeping even though when they wake up most people do not remember the words they hear.

This shows that during sleep, human consciousness is not completely lost, but the alertness mechanism is greatly reduced compared to when humans are not sleeping.

Humans will still have consciousness even when he is in a coma and fainted, but the frequency is lower compared to people who have recovered, so they are not lost but only in the subconscious.

Basically all activities that occur in us or our bodies everyday can be explained scientifically and indeed there are theories or facts that prove in the research.

• Lead image from unsplash

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