Working Overtime Through the Night May Also "Work" Out Cancer! According to reports, the World Health Organization has recently classified night shift work as a "probable carcinogen." Like ultraviolet radiation, vehicle exhaust, and smoking, working overnight has become one of the risk factors for cancer, meaning cancer has now been recognized as an occupational disease."Zuo Wenshu, Executive Committee Member of the Chinese Anti-Cancer Association and Chief Physician at Shandong Cancer Center, told Life Times reporters. "Rising with the sun and resting at sunset" is a natural rhythm formed by the human body adapting to the environment. Chronic sleep deprivation disrupts higher nervous centers, interferes with endocrine functions, and weakens immune mechanisms, making individuals more susceptible to cancer. Researchers also note that artificial light at night inhibits melatonin production, which suppresses the growth of various cancer cells.
"For certain occupations, the cancer risk is higher than average," noted Zuo Wenshu. This is primarily linked to exposure to adverse working environments. A World Health Organization report indicates that 15 of the 18 Group 1 carcinogens originate mainly from occupational settings, while 13 of the 18 Group 2 carcinogens also stem from occupational environments.Experts indicate that the following cancers are closely linked to occupational factors: individuals working in industries involving asbestos, arsenic processing, cadmium, coal tar, and related materials are prone to lung cancer; those in leather tanning, aluminum production, and magenta dye manufacturing are susceptible to bladder cancer; workers exposed to formaldehyde and asbestos dust face increased risks of nasopharyngeal cancer; and those exposed to benzene, vinyl chloride, X-rays, and similar substances may develop hematological malignancies.
Zuo Wenshu emphasized: "Cancer development results from the combined effects of multiple factors." Beyond environmental influences, poor work and lifestyle habits also significantly contribute to carcinogenesis. In addition to staying up late, prolonged sitting during work, excessive stress, fast-paced routines, and consumption of coffee, strong tea, tobacco, and alcohol all increase cancer risk.
Can occupational cancer risks be avoided? Zuo Wenxu affirms they can. First, cultivate healthy work habits—minimize late nights. For those regularly exposed to carcinogens, practice frequent handwashing, bathing, and laundry, and wear protective gear like masks during work. Second, prioritize exercise and balanced nutrition to strengthen immunity. Finally, undergo regular health screenings.