stages of sleep

The 4 Stages of Sleep

Have you ever wondered what you do when you sleep? Did you know that you have 4 stages of sleep?

(Stage 1) This first stage is very light sleep. If you are not disturbed during this stage you will quickly move on to the 2nd stage.
(Stage 2) You start thinking of images, even though there are no visions you really see with your eyes. If you remain undisturbed you will drift off into stage 3.
(Stage 3) You sleep much more deeply now. Your muscles are now more relaxed, and your heart rate has slowed down. Your blood pressure is also falling. Your breathing's steady and even. It's hard to wake you now. Now you will go into stage 4.
(Stage 4) This is the stage when you are dreaming. This is the deepest sleep of all the stages. It's almost impossible to wake you now. If there's a sudden loud noise, or if you are shaken you will wake up. Your blood pressure, heart rate, and brain speeds up.
Then you get REM. This is Rapid Eye Movement. If you are awakened at this time, you will remember most of your dream. REM will slow down as you wake up. Adults usually have around 3 to 5 periods of REM. REM will take about 90% of the time. There is a part of your brain called pons, and they control REM. Scientists still don't know why REM happens. You can't always control your dreams. Did you know that you're everyone in your dream, but you don't know it? Your dreams are related to some events that happened during the day.There are many theories about why dreams happen. It's not only your eyes that move fast, but your brain works faster too! Not everyone recalls their dreams.

Stages Of Sleep Bib.