Study of night-shift workers links men's sleep habits to cancer risk
Male night-shift workers who do not nap during the day or have worked the night shift for more than 20 years – as well as those who average more than 10 hours of sleep per night – may have a greater risk of developing cancer, according to a study from Huazhong University of Science and Technology. Researchers reviewed data from approximately 27,000 men who had retired from the auto manufacturing industry, using a questionnaire to examine how working nights, napping during the day and extended sleep at night impacted the risk of cancer.
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