Sleep duration is associated with survival in patients with advanced cancer.
In an article published in the journal Sleep, Katsunama et al determine that accumulated sleep debt may unconsciously activate food-related reward regions in the brain and may expose us to risk for food over-consumption, which can eventually cause obesity and lifestyle diseases.
Patients with metastatic colorectal cancer who have sleep difficulties and disturbances in their circadian rhythms have worse outcomes than other patients, according to a 2016 study.
The National Cancer Institute (NCI) determined that increased physical activity is associated with lower risk of 13 types of cancer.
In a study published in Sleep Medicine, Innominato et al concluded that sleep problems were associated with earlier death in patients with metastatic colorectal cancer.
In a study published in the Journal of Cancer Epidemiology, Khawaja et al found a modest association between short duration of sleep and higher grade breast cancer in post-menopausal women.
According to the National Cancer Institute, many studies show that physically active women have a lower risk of breast cancer than inactive women; in a 2013 meta-analysis of 31 prospective studies, the average breast cancer risk reduction associated with physical activity was 12%.
In a study published in the journal Cancer, Thompson et al found that shorter duration of sleep–less than six hours per night, as compared with individuals getting at least seven hours per night–significantly increases the risk of colorectal adenoma, which is a precursor to colon cancer.