Can genes related to your sleep change?

Question

Does shifting your sleep change Genes like PER3, DEC2 and other sleep related genes, for instance there have been studies that show that humans are able to shift their sleep to a later time like night shifters, does this happen because of changes in genes that regulate sleep and the circadian rhythm genes?

Answer 1

No. Changing your sleep routine does not change your DNA. Your body adapts to its new sleep schedule. Speaking from experience, it takes several days to adjust to a new schedule when you are going from sleeping at night to sleeping during the day. But the same regulatory mechanisms occur just at a different time.