'Still, from a practical point of view it doesn't matter. You can even ask yourself,' Knutson said. The team notes a limitation of the research was that participants were only asked one question. 'But it's a very broad question and there are a lot of reasons you might not be sleeping well. For the study, published in the Journal of Sleep Research, researchers analyzed data from about 487,700 participants from the UK Biobank.
America is not a place full of research
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