<p>From the author of the acclaimed The Epigenetics Revolution ('A book that would have had Darwin swooning' ? Guardian) comes another thrilling exploration of the cutting edge of human science.<br><br>For decades after the structure of DNA was identified, scientists focused purely on genes, the regions of the genome that contain codes for the production of proteins. Other regions ? 98% of the human genome ? were dismissed as 'junk'. But in recen...