Cancer Cells
Cancer cells do not reproduce at the same rate as normal cells; abnormal mitosis (cell-reproduction) rhythm and, in many instances, a complete lack of circadian rhythm have been reported. X-ray therapy diminishes the noncircadian mitosis of cancer cells.
Normal cells show intervals of accelerated reproductive activity. For example, in man, skin and liver cells are more active at night.
Experiments with hamsters and mice show that environmental light and the animal`s activity pattern influence the rhythmic reproduction of cells.
Further investigation may show a similiar relationship in man, with both normal and cancer cells.
Reference :
Reference :
United States Department of Health, Education, and Welfare, Public Health Service, Biological Rhythms in Psychiatry and Medicine. Chevy Chase, M.d.: National Institute of Mental Health, 1970.
