Wednesday, September 29, 2021
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Night shifts may cause cancer, damage DNA: Study

A study has found that working night shifts can damage a person’s DNA, increasing the risk of cancer as well as cardiovascular, metabolic, and neurodegenerative diseases. The study was published in the journal Anaesthesia, in which researchers analysed blood samples of 49 healthy full-time doctors taken at different times.

“Although this work is very preliminary, it is clear from the results that even a single night of sleep deprivation can trigger events that may contribute to the development of chronic disease,” said Siu-Wai Choi, of the University of Hong Kong.

Further the researchers found that on-call doctors who were required to work overnight on-site had lower DNA repair gene expression and more DNA breaks than those who did not work overnight. In these overnight on-site call doctors, DNA repair gene expression decreased and DNA breaks increased after sleep deprivation. Damaged DNA increased after only one night of sleep deprivation.


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