Diagram showing the major parts of a modern in...

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If you haven’t noticed already, I love analogies. This past weekend I thought of a new one on epigenetics. It is light a light bulb. It doesn’t do much unless it’s turned on. A dimmer can make the light glow from off, through dim to bright. Sometimes we want the light turned on so we can see and read but other times we want it off so we can sleep. If the light goes out while we are reading, it’s a bad thing. If the light comes on during the night when we are sleeping, it’s a bad thing. Epigenetics is similar. Turning genes ON/OFF is not good or bad in and of itself but when they are activated improperly or deactivated improperly they can cause havoc that may lead to disease and death.