One in 100 women who were considered daily developed breast cancer, compared to two in 100 that were characterized as nocturnal. The risks of cancer associated with a person's body clock and sleep patterns were reported in another UK study in order to investigate sleep patterns as well as genetic factors.
Updated morning and night preferences were recorded in the study with more than 180,000 women in a study led by Dr. Rebecca Richmond, a researcher in the Cancer Epidemiology Integrated Program and the Bristol University of Epidemiology, and presented at the Cancer Research Conference of the National Cancer Research Institute in Glasgow.
Early infants with less risk of breast cancer.
The Richmond team also analyzed genetic variants related to the fact that one was daytime or nighttime in over 220,000 women to see if this could be a causal link to breast cancer.
It turned out that women whose genes make them more likely to be premature infants are less likely to develop breast cancer by up to 48%, as shown by the 220,000 participants in the study.
Women who reported sleeping more than the average of 7 or 8 hours per night also had a slightly higher risk of developing breast cancer.
In the second analysis, sleeping 180,000 participants showed a similar trend in women during the day, with a 40% lower risk of developing breast cancer. The variance is due to technical differences, Richmond said.
Women who reported sleeping more than the average of 7 or 8 hours a night also had a slightly higher risk of developing breast cancer by 20% per additional sleep time, according to the Mendelian team randomization analysis.
Let us take care of our health to avoid any inconvenience.
However, the team noted that many factors also interfere with the fact that a person develops breast cancer and that these elements are not an absolute risk. Findings can not be applied to all populations, as most of the women who participated were of European origin.