Health & Body - Sleep epigenetics: how lifestyle and stress alter gene regulation

Researchers in sleep epigenetics study how heritable factors that do not alter DNA sequences interact with rest. Early life stress can permanently alter glucocorticoid receptors and harm sleep quality. In turn, sleep deprivation directly modifies the epigenome through changes to histones, non-coding RNA, and DNA methylation. Epigenetic alterations heavily influence the onset of conditions like insomnia and sleep apnea. Fortunately, researchers have also found methods that reverse, treat, and prevent sleep issues through epigenetic changes.

Source: Wikipedia