We explain what the new science of epigenetics means for your children and grandchildren.
Everyone's heard of the genome: that double helix DNA code that is uniquely yours, unless you happen to have an identical twin. But there's another layer of complexity responsible for creating us — and that's the epigenome.
Your epigenome sits in your cells with your genome. It's a set of instructions that decides which bits of your DNA are activated, or which genes are switched on or off.