Sleep is necessary, important and useful, but why should we sleep a third of our lives? The question remains open. There is probably a lot going on at night that you don't even know about, since sleep is a pretty interesting time for your body. Here are seven things you can do in your sleep without even knowing it.
1. Your biorhythms are still working
You can sleep, but your hypothalamus cannot. It follows the same life cycle as part of your circadian (daily) biorhythm. It is he who makes you feel tired by producing melatonin and sending you to sleep. It is he who produces a protein in the morning called PER, which gradually wakes you up, sometimes even before the alarm goes off.
2. Conversation in a dream
Sleep conversations or doubtfulness can range from random sounds to full and complete sentences. Approximately 5% of adults talk while asleep, and this can occur at any stage of sleep. In men and children, this is more common and can be caused by fever, lack of sleep, stress, anxiety, or depression. Don't worry, there is no evidence that people give away all their terrible secrets in their sleep.
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3. Grinding of teeth
Most people do this - at least sometimes. This habit is called bruxism and it can be triggered by emotional or psychological conditions such as stress or anxiety. Often it is also the result of malocclusion or sleep apnea. People usually don't realize this until someone else tells them or their dentist notices signs of tooth wear.
4. Snacks
All calories are counted, even the ones you eat while sleeping. Some people are capable of this, and this is one of the variants of sleepwalking. So, the sleeping person goes to the kitchen and absorbs what he likes - mainly what is not allowed or what he deliberately denies himself. Our brains are capable of very bizarre games, right?
5. Brain work
You think you are resting, but your brain does some serious homework every night. While you sleep, it erases some memories, formats and reorganizes others. The brain also "physically" cleans itself with a flow of cerebrospinal fluid, which flushes out unwanted proteins that can act as toxins.
6. Paralysis
Your muscles freeze for a while every night. During the Rapid Eye Movement (REM) phase, your brain “scans” dreams and your body muscles are nearly paralyzed to protect you from reacting to those dreams (for example, you can scream or wave your arms to repel impending danger). You may even wake up suddenly towards the end of this phase and feel numb. Do not be afraid, this state goes away almost instantly.
7. Weight loss
You yourself are fast asleep, but it turns out that your body continues to work hard. Every night you lose about 400 grams - this is the liquid that comes out with your breath in the form of water vapor. You also lose weight as more carbon atoms are eliminated with each exhalation. And, probably, this is the best news about your actions in a dream!