![]() ![]() These studies have involved mainly nurses and flight attendants. ![]() IARC based its conclusion on studies on long-term night shift workers who have shown a higher risk of breast cancer than women who do not work at night. Group 2A means that this conclusion was based on "limited evidence of carcinogenicity in humans and sufficient evidence of carcinogenicity in experimental animals". The International Agency for Research on Cancer (IARC) has classified night shift as "probably carcinogenic to humans" (Group 2A carcinogen). cause sleep deprivation and disorders of the gastrointestinal and cardiovascular systems,.upset one's circadian rhythm (24-hour body cycle),.On the other hand, some workers prefer shiftwork because it usually allows for more free time.Ī shift worker, particularly one who works nights, must function on a schedule that is not "natural". Many workers find that shiftwork disrupts their family and personal life and leads to health problems including chronic fatigue and gastrointestinal disorders. Many more women than men work in the healthcare sector, while many more men than women work in manufacturing. However, there are gender differences in shift work patterns by sector of employment. ![]() The overall prevalence of shiftwork is similar for women and men. Shiftwork is also common in workplaces where technical processes cannot be interrupted without affecting the product and where expensive equipment is used more profitably when in constant operation.
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