The Epigenome

The epigenome refers to chemical modifications on DNA and its associated proteins that influence gene activity without changing the underlying genetic sequence. Think of it as a set of "dimmer switches" that turn genes on or off, allowing cells to respond to their environment and develop unique functions. These modifications can be influenced by lifestyle, environment, and aging, and they play a key role in health and disease. Essentially, the epigenome helps regulate how our genes are expressed, shaping how our bodies grow, function, and adapt over time.