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How Much Time Are You Wasting On Sleep?

Last updated: 04-30-2020

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How Much Time Are You Wasting On Sleep?

In a previous post, I mentioned how everyone’s rest requirements can be different. A healthy person’s body is able to handle a bigger blow of stress, and recover with less consequences. People with chronic illnesses on the other hand, learn to pay constant attention to the state of their body. If there is one thing we can agree on through our assorted experiences, it is that sleep has a huge impact on the quality of our our lives. Many things play a role in the quality of your sleep, including good sleep hygiene, and if your bed is well suited for your needs and body type.

In modern society, sleep is often considered a luxury more than a necessity, but your brain isn’t loafing when you rest. It isn’t so much a descent from an active to passive state. It is more of a switch of modes from energy consumption to replenishment and restoration. Your brain redirects blood and energy, and your body undergoes maintenance and repair. Even the fastest car needs to undergo constant maintenance, what more your body.

Let us take a quick look at what goes on within our bodies when we sleep, and how it can affect us.

“Rest is not idleness, and to lie sometimes on the grass under trees on a summer’s day, listening to the murmur of the water, or watching the clouds float across the sky, is by no means a waste of time.” – Sir John Lubbock (Download free wallpapers here.)

Our body has a garbage collection system known as the Glymphatic System, which becomes 10 times more active when we are asleep. This system is in charge of taking out the protein trash such as amyloid-beta. An accumulation such proteins leads to neurological diseases such as Alzheimer’s. In fact, almost all neurodegenerative diseases result from a build up of this toxic protein.

Research has also found that the brain’s cells reduce up to 60% in size when we are asleep, which allows for efficient waste removal. (This fact fascinates me, as the surgeon who tried an experimental technique during my heart surgery mimicked this concept).

A cancer killer known as TNF (tumour necrosis factor alpha) starts to circulate when we are asleep. Research has shown that both the amount as well as the effectiveness of it reduces by a third in those who slept after 3am.

You may already have noticed that sleeping aids in recovery when you are sick. This may be due to an increase of infection resisting proteins produced by our immune systems when we sleep. Moderate amounts of sleep deprivation also reduces the levels of white blood cells in our bodies, which play a big role in our body’s defence system.

Studies have also shown that in only one week of sleep deprivation, genes involved in inflammation, immunity and protein damage were activated. Millions of people are sustaining damage to their bodies in this manner.

The artificial lights that we use round the clock in modern society resets our Circadian Rhythm as much as exposure to the sun does. This forces our bodies to work overtime. As a result, physical processes such as digestion and cell renewal become less efficient.

Every tissue in the body, from those in our muscles and bones right down to those at the cellular level, renews at a faster rate while asleep.

Studies have shown that the ability to process blood sugar in healthy young men were reduced by up to 30% after only getting four hours of sleep per night for a week. This result nearly matches those of diabetics. There was also a huge drop in their insulin response, and elevated levels of cortisol. This is a stress hormone which can lead to hypertension and memory impairment. Research is also ongoing from this finding, to understand the link between sleep and obesity.

Sleeping moves our body from a catabolic to anabolic state. That is, from one of stimulation, to one of conservation, repair and regrowth.

Many of us are familiar with melatonin and associate it with sleep supplements. In fact, it is a hormone that also helps in the regulation of other hormones within our body, too. Apart from maintaining our body’s circadian rhythm, it is also linked to female reproductive hormones and more.

The top layer of our skin comprises of dead cells that are closely packed together. They shed throughout the day, but the metabolic speed of our skin speeds up during sleep. This enables these dead cells to be shed at a faster rate. A lack of sleep for a continued period of time can also cause premature ageing of the skin and permanent discolouration.

A typical night of sleep consists of five different cycles, each lasting for about 90 minutes. At stage 4, which is the deepest level of sleep, blood that usually flows to our brain is redirected to our muscles for restorative purposes instead. Our brain waves are able to slow down by 50% at this stage, as the mental burden has reduced.

At stage 5, which is also known as REM (Rapid Eye Movement) sleep, our brain is actually in a state of high activity. Whether we remember them or not, this is when we dream, without which we would go mad.

A sharp increase in blood to brain areas involved in memory and emotion processing also occurs during REM sleep. The brain recharges its energy stores, and does some housekeeping. It processes and shifts the day’s information to long term memory storage.

This is but a brief list that skims the surface of sleep and its purposes. Yet it is enough to see that our bodies are hard at work not only when we are in physical motion, but also whilst at rest. So don’t feel bad about going to bed now if it’s time – your body has other very important jobs to attend to!

*Please Note: My research for this article involved various online sources. I have checked for the credibility of information to the best of my ability, but I am not a doctor. Always consult your physician before changing any medications or routines!

Read More: How to Rewire Your Brain to Manage Chronic Pain (& Resources to Help)

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