Usually, we should have seven to nine hours of sleep to function at our best state. But, as we grow older, we tend to get less amount of sleep depending on our lifestyle. So, most of the time, we tend to acquire different diseases. There are lucky ones who get to have more than nine hours of sleep; however, according to scientists, sleeping for more than eleven hours is also dangerous.
If a person acquires this amount of sleep, he/she is prone to have an incurable disease called Pulmonary Fibrosis. A person who has this progressive and chronic lung disease has difficulties in breathing, and it is difficult to get enough oxygen in the bloodstream. According to the University of Manchester, Pulmonary Fibrosis kills about 5,000 people a year in the U.K. Learn more about this research.
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