What are the genome's strategies for adapting to a changing environment? How does diet influence the expression of our genes and our health? Can it affect future generations? Did you know that trauma can be inherited through genes? So, was Lamarck right? Why are the cells in our organs different? How does X-chromosome inactivation work in mammals? Without altering the DNA sequence, epigenetics explains how gene function can be modified through incredible biological processes. From aging to diseases such as cancer, surprising mechanisms are revealed that challenge many of the ideas we thought we understood. Epigenetics is an exciting and still little-explored science that rewrites much of what we thought we knew about DNA. It opens fascinating doors to a better understanding of gene functions, allowing us to discover more about who we are. How does a plant remember the ideal time to flower each year? How is symmetry determined in flowers? Embark on a journey into the mysteries of DNA and discover how every choice can change our genetic destiny.