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Is a naturally occurring hormone controlled by light exposure that helps regulate your sleep-wake cycle.
Your brain secretes more melatonin when it’s dark, making you sleepy, and less when it’s light, making you more alert.
However, many aspects of modern life can alter your body’s production of melatonin and shift your circadian rhythm
During the day:
The average adult spends 36 % (or about one-third) of his or her life asleep.
Purpose of Sleep:
The first purpose of sleep is restoration.
Every day, your brain accumulates metabolic waste as it goes about its normal neural activities. Sleeping restores the brains healthy condition by removing these waste products. Accumulation of these waste products has been linked to many brain-related disorders.
The second purpose of sleep is memory consolidation.
Sleep is crucial for memory consolidation, which is responsible for your long term memories. Insufficient or fragmented sleep can hamper your ability to remember facts and feelings/emotions.
The brain is preparing for sleep about two hours before our actual bedtime. That waking system has to slowly come down to allow the sleep system to take over.
Even just a few seconds of exposure from a blue light-emitting device an hour before bed can disrupt the melatonin rhythm, a rhythm that is so critical to helping us fall asleep, stay asleep and wake up feeling refreshed.
In our perpetually dieting world, it’s not uncommon to lie in bed hungry, but not wanting to eat in an effort to save calories. However, hunger is stimulating and fragments sleep.
Eating a light carbohydrate or protein snack prior to bedtime will stave off hunger without causing you to crash and awaken later in the night.