"...Artificial light at night is significantly correlated for
all forms of cancer as well as lung, breast, colorectal,
and prostate cancers individually. Immediate measures
should be taken to limit artificial light at night..."Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC5454613/
"...The current findings provide evidence that exposure
to ALAN represents a remarkable risk factor for weight
gain, overweight and obesity, as well as for cancer..."
Source: #1
"...Exposure to light in late evening, at night or early
morning disrupts the circadian rhythm and the production
of melatonin, and hence has an effect on sleep, mood and
cognition. Severe disruption of circadian rhythms is linked
to breast cancer and could also play an important role in
the development of breast, prostate, endometrial, ovary,
colorectal and skin cancers cardiovascular diseases,
reproduction, endometriosis, gastrointestinal and digestive
problems, diabetes, obesity, depression and sleep deprivation. Light itself has an effect on alertness, sleep, mood and the circadian rhythms
regardless of the type of lamp used. Blue light or light enriched
in blue has a more pronounced effect than other colours or
white light but lamps available to the general population are
not blue or blue-enriched..." Source: #2