HALF ASLEEP & MEDITATING IS THE WAY OF THE BIRDS
Sleep is for the brain rather than for the body.
If we can switch off the brain, then sleep becomes superfluous.
We need to look at the sleeping brain to better understand the why and how of a state in which we pass one third of our life.
Reduced sensitivity to external events distinguishes sleep from quiet
resting.
The capacity to awaken from slumber distinguishes sleep from coma.
Deep sleep, in humans is different from Birds.
A person is either asleep or awake but not both simultaneously.
Birds sleep with one-half of their brain awake!
It's called unihemispheric slow-wave
sleep and keeps birds alert to potential predators while still catching some ZZ. Other animals sleep this way, but only birds have the ability to control
it.
A sleeping bird can adjust how much of its
brain is asleep by how wide it opens or closes its eye.
Bird's sleep pattern is paradoxical, it will
not lose much muscle tone when in deep sleep.
In Humans Muscular tone is gone, to all intents and purposes, the body
is paralyzed in deep sleep.
Exception being the breathing musculature and the jerky, rapid movement
in each eye that give this phase of sleep its name, REM.
Most Birds, Stand, Perche, Roost, Swim/Float, or
Hang upside down, Lay down on the ground while sleeping.
The down jacket design was patterned after
sleeping birds.
A bird fluffs up its feathers to better cover
its body when sleeping to keep its body temperature high.
The bird will also experience thermogenesis and
some birds take this one step further in cold temperatures by making themselves
undergo a controlled hypothermia called "nocturnal torpor."
Slow-wave activity is homeostatic ally regulated, that is, the longer
somebody stays awake, the deeper and more frequent slow waves occur the
following night. Conversely, early in the morning when sleep pressure has
lessened, SWA diminishes, and sleep becomes shallower. Likewise, taking a nap
reduces nighttime slow waves.
Birds take hundreds of daytime naps to make up
for no nighttime sleep.
Birds like ducks and geese that fly in J and V
formations will use slow-wave sleep when not in the head of the group.
Non-rapid Eye Movement nap averages around 150
seconds.
Rapid Eye Movement nap is about 9
seconds.
E-book
https://www.amazon.ca/Magic-mind-Miracle-body-healing/dp/1466239271
Hard cover book
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