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A single mistake can prove to be very costly for them and it can even threat their life as well. Therefore the activeness of their mind is very essential under these circumstances.But if by chance they are affected by the problem of narcolepsy, then it can mean real problem for them. This is a sleep disorder that causes excessive daytime sleepiness in the person and makes them sluggish and drowsy for the whole day.
The person can fall asleep anywhere and anytime without any warning and it can be really very inconvenient for the patient as well as for the people surrounding them. This can also become reason for other health complication like obesity, diabetes and cardiovascular disorder. People suffering from sleep disorder can also suffer from the problem of depression as well.