Sleep: The Different Stages of Sleep

Sleep: The Different Stages of Sleep

By Crystal Tsui

Have you ever wondered why at certain times of the night you tend to be more alert and other times you dream, unaware of your surroundings? That’s because there are different stages of sleep, more specifically five stages.

  • Stage 1
  • Stage 2
  • Stage 3
  • Stage 4
  • REM (rapid eye movement)

How do we determine what stage is what? Sleep researchers use an electroencephalogram (EEG), is a method used to monitor and record electric cortical brain activity, and other instruments to help determine the stages.

In Stage 1, researchers found that this cycle is the lightest sleep. On the EEG, the frequency is slower than when we are awake. Physically, our muscles relax and our breathing occurs at a regular rate.

In Stage 2, we are less likely to be awakened. Our heart rate and temperature decreases as our body is preparing to go into a deep sleep.

In Stage 3 and 4, we begin our deep sleep. It’s harder to be awakened because at this point our body becomes less responsive to outside stimuli. In these stages, our body starts to restore itself, stimulate growth and development, boosts immune function, and builds energy for the next day.

In REM, dreaming occurs, our eyes quickly jerk in different directions, heart rate and blood pressure increase, and our breathing become fast and shallow. This stage generally lasts up to an hour and begins about 90 mins after you initially fall asleep. This is an important stage because our brain starts to consolidate all the information we have learned during the day into our long-term memory.

In children, one cycle can last up to 50-60 mins and increases to 1-1.5 hours in adults. It is advised:

  • Babies (0 months – 11 months) get 14-18 hours
  • Toddlers (1-5 yrs) get 12-13 hours
  • Children (6-10 yrs) get 8.5- 11 hours
  • Pre-teens and teenagers (11-17) get 8-10 hours
  • Adults (18-65+) get 7-9 hours of sleep

If you or someone you know has trouble sleeping, please contact our psychotherapy offices in New York or New Jersey to talk to one of our licensed professional psychologists, psychiatrists, psychiatric nurse practitioners, or psychotherapists at Arista Counseling & Psychotherapy. Contact our Paramus, NJ or Manhattan, NY offices respectively, at (201) 368-3700 or (212) 722-1920 to set up an appointment. For more information, please visit http://www.counselingpsychotherapynjny.com/ .

Citation:

https://img.timesnownews.com/story/1535107553-sleep.PNG?d=600×450

https://www.sleepassociation.org/about-sleep/stages-of-sleep/

https://www.sleep.org/articles/what-happens-during-sleep/

Why Is Sleep So Important?

Why is Sleep So Important?

By: Lauren Hernandez

            Sleep is one of the most important lifestyle choices besides nutrition and exercise. In order to gain the benefits of sleep, one must complete the 5 stages of the sleep/ rest cycle that occurs at night. It is essential that you strive to sleep the appropriate amount of hours necessary to maintaining a healthy lifestyle- physically and mentally.

These are the nightly sleep recommendations per age:

  • Infants four to 12 months should sleep 12 to 16 hours per 24 hours (including naps).
  • Children one to two years of age should sleep 11 to 14 hours (including naps).
  • Children three to five years of age should sleep 10 to 13 hours per 24 hours (including naps).
  • Children six to 12 years of age should sleep nine to 12 hours per 24 hours.
  • Teenagers 13 to 18 years of age should sleep eight to 10 hours per 24 hours

Lack of sleep causes negative mental and physical effects such as:

  • Weight gain
  • Likelihood of infections
  • Chronic diseases
  • Type-2 diabetes
  • Heart Disease
  • Increased chances of anxiety
  • Increased chances of depression
  • Forgetfulness

If you or someone you know has a sleep disorder, please contact our psychotherapy offices in New York or New Jersey to talk to one of our licensed professional psychologists, psychiatrists, psychiatric nurse practitioners, or psychotherapists at Arista Counseling & Psychotherapy. Contact our Paramus, NJ or Manhattan, NY offices respectively, at (201) 368-3700 or (212) 722-1920 to set up an appointment. For more information, please visit http://www.counselingpsychotherapynjny.com/ .

 

 

 

Sources:

https://www.psychologytoday.com/us/blog/the-athletes-way/201606/how-much-sleep-is-required-optimal-health-age-matters

 

https://www.psychologytoday.com/us/blog/the-resilient-brain/201704/restorative-sleep-is-vital-brain-health

 

Image Source:

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