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Why we could stay active at the dark
1.Our bodies are adaptable. For example, for workers who work at night, our body will adapt the melatonin hormone in this case so they will stay awake even though it was dark.

Why we sleep at night

2.Have you ever asked, why do we sleep at night? Or why people in the rural communities that had no electricity tend to sleep more quickly? The answer is hormone melatonin.
our system will tell the body to release hormone melatonin when it is dark.in the same way the hormone order our body to take a break and rest.
however ,with the presence of an electric lamp that makes the night bright as a day light it block the issuance of the hormone melatonin, so it make us sleep later then people who live with no electric lamp at night

More over,when the night go on, we will be more likely to feel sleepy, due to the hormone melatonin that is produced increased and in the same way our body temperature is drop together with our blood pressure

Why sleep make us feel better”
3.To be able to repair cells damaged, the body needs sleep. good sleep hours is about 7 to 9 hours each day. This cellular repair triggered by a hormone called Human Growth Hormone (HGH).

Because of that, with an average sleep 8 hours per day,it is the same as letting our body to restore the body back.

before sleep don’t eat salty food,
Eating salty foods can make our body dehydrated,then it will cause our body get water retention in which causes mild hypertension that will disturbed the process of cellular repair process

Don`t eat sweet food before sleep either,WHY?

sweet foods will make us hard to sleep because sweet food will order our brain to release hormone insulin. As a result there is sugar in the blood vessels will be stored in muscle cells, liver and fat.

Because of that it will increase our body’s sugar levels,accordingly the brain will be ordered to release more hormone cortisol to breaks the fat into sugar.the Side effects of the “working” hormone cortisol is a “stress” that in the next scene it would disturbed our sleeping scedule due to the existing stress.

Why we don’t bed wetting when we sleep?

Have you ever wondered why in the 8 hours sleep ,we dont feel urge to pee in the sleep?well. When we sleep, the body produces hormone vasopressin which inhibits urine expenses so we can sleep without disturbance have to weak up and have to pull out the “water from the restorations”