New Delhi, June 3 -- In an interview with HT Lifestyle, Dr Kiran Kamalasanan, consultant, surgical oncology at Apollo Cancer Centre in Guwahati, explained, "Exposure to blue light late in the evening tricks the brain into thinking it's still daytime. This delays the release of melatonin - a hormone crucial not just for sleep quality but also for regulating cellular health and immune defense."

Studies suggest that melatonin helps suppress tumour growth and when its levels are reduced consistently, it may create a biological environment where cancer is more likely to develop. Epidemiological evidence links chronic circadian disruption, such as in night shift workers, with higher rates of breast, prostate and colorectal cancers. In fact, Th...