Why is sleep so important?

Sleep is essential for everyone’s health and well-being. Yet a lot of people don’t get enough sleep and many of them suffer from lack of it.

Have you ever woke up absolutely tired and you promised yourself that you will go to sleep soon today? Did not happen? Yes, most of us have been there, but why we need to pay more attention to our sleep?

Recommended length for a sleep among the adults is approximately 8 hours per night. If you don’t get enough sleep you may face a lot of health problems. They can lead to:

  •  excessive daytime sleepiness, tiredness and lethargy
  •  morning headaches
  •  poor memory and difficulty focusing
  •  anxiety and depression
  •  direct effect on health, development, behaviour and ability to socialise
  •  chronic health problems such as obesity, diabetes and cardiovascular disease
  •  an increased risk of alcohol and drug dependence
  •  having a car accident
  •  relationship problems
  •  lack of sex drive.

What happens during the sleep?

  •  Healing damaged cells
  •  Boosting immune system
  •  Recovering from the day’s activities
  •  Recharging heart and cardiovascular system for the next day
  •  Growing muscles
  •  Repairing overloaded & torn tissues
  •  Regeneration

Have you ever heard about sleep cycle?

There are two expressions concerning sleeping: REM phase and NREM phase. Both phases are important for different functions in our bodies.
REM phase , called rapid eye movement , occupies only 20% of our sleep during the night. It’s the phase, when dreaming occurs. REM is very important when it comes to a mental well-being. It’s essential to our minds to process and to deal with emotions, memories and stressfull experiences. Uninterrupted sleep in this phase is also very important for learning, stimulating the brain regions and developing new skills.
NREM, or non-rapid eye movement, typically occupies 80% of total sleep each night. This phase is essential for healthy body itself. Many of the health benefits of sleep take place during NREM. For example tissue growth and repair occurs, energy is restored and hormones that are essential for growth and development are released.
If we would like to divide the sleep even further we’d be speaking about five phases:
Stage 1 – light sleep. In this phase is the transition between sleep and waking. Person is easily roused, has fleeting thoughts. Eyes move slowly and the muscle activity is reduced.
Stage 2 – when you get to this point, your eye movements stop and you have brief dreams.
Stage 3 – deep sleep (NREM). At this point the body temperature drops and person is hard to awaken.
Stage 4 – deep sleep (NREM). In this phase body temperature falls further and brain’s use of energy decreases. Muscle tone decreases slightly as well.
Stage 5- REM, This is that phase when most dreams occur. Heart rate and blood pressure increases and brain is active again with using a lot of energy. And now we are getting closer to the point when we’ll finally get, why we wake up even more tired than when going to the bed. It’s so simple. If these cycles are interrupted multiple times throughout the night, either due to snoring, difficulties breathing or waking up frequently throughout the night — then we miss out on vital body processes, which can affect our health and well-being the next day and long term.

So, what about now? Will you go to sleep sooner today? We hope you will and you´ll feel a lot better tomorrow morning! 


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