Pilots should have adequate sleep before operating a flight

Before a flight, one pilot should have adequate sleep. Inadequate sleep might bring stress to brain. This is dangerous in case of pilot since he has a lot of life in his hand and a wrong step could cause fatal disaster. 

Moreover one can have hallucination on such state and this can cause trouble in flight control. Though there is another hand of the pilot but inadequate sleep can also cause communication lack between both pilot which we can see in the video already. Since there was lack in communication, both pilot inputed opposite command of each thus both was overridden by the system. 

So, every pilot should have enough sleep before flight or a rest period for long distance flight. This incident is not that old, so there is no space to not think on it. But good thing is aviations are now more endeavoring on such matter.

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