9/2/2023 0 Comments Graveyard shift worker![]() ![]() The health consequences of shift work may depend on chronotype, that is, being a day person or a night person, and what shift a worker is assigned to. Shift work may also increase a person's risk of smoking. Artificial lighting may additionally contribute to disturbed homeostasis. Shift work also can worsen chronic diseases, including sleep disorders, digestive diseases, heart disease, hypertension, epilepsy, mental disorders, substance abuse, asthma, and any health conditions that are treated with medications affected by the circadian cycle. Ĭhildren going to a 12-hour night shift in the United States, 1908 Shift work also increases the risk of developing cluster headaches, heart attacks, fatigue, stress, sexual dysfunction, depression, dementia, obesity, metabolic disorders, gastrointestinal disorders, musculoskeletal disorders, and reproductive disorders. Women who worked rotating night shifts for more than 15 years also experienced a 25 percent higher risk of death due to lung cancer. A recent study, found that women who worked rotating night shifts for more than six years, eleven percent experienced a shortened lifespan. Early menopause can lead to a host of other problems later in life. The increased risk among rotating night shift workers was 25% among women predisposed to earlier menopause. ![]() Working rotating shift work regularly during a two-year interval has been associated with a 9% increased the risk of early menopause compared to women who work no rotating shift work. Shift work may also increase the risk of other types of cancer. The WHO's International Agency for Research on Cancer listed "shift work that involves circadian disruption" as probably carcinogenic. This may be due to alterations in circadian rhythm: melatonin, a known tumor suppressor, is generally produced at night and late shifts may disrupt its production. Women whose work involves night shifts have a 48% increased risk of developing breast cancer. People working rotating shifts are more vulnerable than others. ![]() The risk of diabetes mellitus type 2 is increased in shift workers, especially men. Shift work is considered essential for the diagnosis. Shift work sleep disorder is a circadian rhythm sleep disorder characterized by insomnia, excessive sleepiness, or both. Shift work increases the risk for the development of many disorders. Health effects Ī video on the health effects of shift work The Cromford Mill, starting from 1772, ran day and night with two twelve-hour shifts. This 24-hour process of production exists today as a system in many of the as yet 'free' branches of industry in Great Britain, in the blast-furnaces, forges, rolling mills and other metallurgical establishments of England, Wales and Scotland. It is well known that this shift-system, this alternation of two sets of workers, predominated in the full-blooded springtime of the English cotton industry, and that at the present time it still flourishes, among other places, in the cotton-spinning factories of the Moscow gubernia. An alternation becomes necessary, between the labour-powers used up by day and those used up by night. But since it is physically impossible to exploit the same individual labour-power constantly, during the night as well as the day, capital has to overcome this physical obstacle. In 1867, Karl Marx wrote on the shift work system in Capital, Volume 1:Ĭapitalist production therefore drives, by its inherent nature, towards the appropriation of labour throughout the whole of the 24 hours in the day. The shift work system in modern industrial manufacturing originated in the late 18th century. In medicine and epidemiology, shift work is considered a risk factor for some health problems in some individuals, as disruption to circadian rhythms may increase the probability of developing cardiovascular disease, cognitive impairment, diabetes, altered body composition and obesity, among other conditions. The term "shift work" includes both long-term night shifts and work schedules in which employees change or rotate shifts. The practice typically sees the day divided into shifts, set periods of time during which different groups of workers perform their duties. Shift work is an employment practice designed to make use of, or provide service across, all 24 hours of the clock each day of the week (often abbreviated as 24/7).
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