How does this programming work? It’s a lot like computers. Computers have operating system code that benefits all the programs running and does common functions like clean-up and printing. Then there are normal programs that can do anything from spreadsheets to movie making. Epigenetics works a lot like this. The operating system code is what makes each cell a certain type (e.g. blood cell, skin cell, hearty cell, brain cell, etc.). Epigenetics turns on certain genes and off others making the cell react like the type it is becoming. Once done any cell divisions will be this type as well. There is epigenetics that runs the cell (this is the same from the lowest life forms, through plants to animals). This programs cell division, nutrient intake, waste explosion, etc. But cells are living thinking entities that have to change and react to their environments. They do this through epigenetics. What we eat, how we think, our hormones all cause epigenetic changes that can be good or bad for us. They are not trying to make us sick but react to something in their environment. This is how we change along with Earth’s changes and evolve. What we eat can be so different from what we ate 100 years ago (processed foods) that our cells do things that cause disease.
All of this is happening within each cell of our bodies. There are more cells in each of us than animals on our planet. Think about that! We are a living thinking reacting community of cells. If our cells get in trouble, we get in trouble. Our cells also talk to each other through epigenetics. This form includes messages that can affect nearby cells or travel the body to distant cells. Hormones are a good example of this. Our brain produces them and cells all over our body react to them. Puberty causes massive changes to our cells and their functionality allowing us to become sexual and procreate.