The body requires sleep to heal itself, protect its immune system, and fight cancer. Poor sleep disrupts melatonin production, increasing cancer risk. Lifestyle factors like stress, overworking, and lack of sleep can lead to cancer development. Monika Choudhary’s story highlights how neglecting health for work can result in cancer. Chronic stress, overworking, and poor sleep quality impair immune function and increase inflammation, contributing to cancer. Sources highlight the link between stress, inadequate sleep, and cancer risk.