Answer: Insomnia
Explanation: Insomnia is considered as a sleeping disorder .In this case the person having disorder is not able to fall asleep or not able to stay asleep. The symptoms like sudden waking up from sleep at night hours, early waking up during morning time, not able to go back to sleep etc.
Other options are incorrect because enuresis is the lack in control of bladder, narcolepsy is falling asleep in a calm and relaxing environment and REM sleep behavior disorder defines act of coming out from the intense dreams.Thus, the correct option is insomnia
There are reports of iron overdosage in the United States under 6 years of age and this is one of the common death due to poisoning. The red blood cells have hemoglobin which is a protein carrying oxygen to the cells in the body. The body then needs iron to produce hemoglobin. If one does not have iron, the red blood cells will become pale and smaller thus they cannot carry oxygen enough in the body.
