EPIGENETIC METHYLATION. “For instance, in female shift workers from a prospective cohort in Denmark, DNA methylation studies have found genome-wide alterations to cancer-specific and circadian loci, including estrogen receptor α (ESR1) and the circadian genes clock (CLOCK) and cryptochrome 2 (CRY2).”
https://www.nature.com/articles/s41591-018-0271-8?fbclid=IwAR01C2Z4J5lxVYDLhxIb9dPb3fhNSZSxwimZvhHaJ4n3-nVPpkt2PNqoukk