REJUVENATE: Our sleep and dreams are part of a restorative process our body needs to stay healthy and happy.
When we sleep well, we wake up feeling refreshed and alert for our daily activities. Sleep affects our how we look, feel and perform on a daily basis, and can have a major impact on our overall health and quality of life.
Here are some of the specifics of how and why we sleep, and how our dreams factor into the cycle.
Sleep architecture follows a pattern of alternating REM (rapid eye movement) and NREM (non-rapid eye movement) sleep throughout a typical night in a cycle that repeats itself about every 90 minutes.
What role does each state and stage of sleep play?
NREM (75% of night): As we begin to fall asleep, we enter NREM sleep, which is composed of stages 1-4
N1 ( stage 1) - Between being awake and falling asleep - Light sleep
N2 ( stage 2) - Onset of sleep - Becoming disengaged from surroundings, breathing and heart rate are regular, body temperature drops (so sleeping in a cool room is helpful)
N3 (stages 3 and 4) - Deepest and most restorative sleep - Blood pressure drops, breathing becomes slower, muscles are relaxed, blood supply to muscles increases, tissue growth and repair occurs, energy is restored, hormones are released,
REM (25% of night): First occurs about 90 minutes after falling asleep and recurs about every 90 minutes, getting longer later in the night.
It provides energy to brain and body, supports daytime performance, brain is active and dreams occur, eyes dart back and forth, body becomes immobile and relaxed, as muscles are turned off, in addition, levels of the hormone cortisol dip at bed time and increase over the night to promote alertness in morning.
Sleep helps our immune system, and can also balance our appetites by helping to regulate levels of the hormones ghrelin and leptin, which play a role in our feelings of hunger and fullness. So when we’re sleep deprived, we may feel the need to eat more, which can lead to weight gain.
Enjoy early evenings, weekend naps and making sure your body ξ mind are revitalised and fresh for the week ahead. 💤
#sleep #circadianrhythm #honouryourbody #rest #selfcare selfcaresunday