About Nessa Carey: Nessa Carey is the author of The Epigenetics Revolution (2011) and Junk DNA: A Journey Through the Dark Matter of the Genome (2015), and former Senior Lecturer in Molecular Biology at Imperial College London.
Our brains contain one hundred billion nerve cells (neurons). Each neuron makes links with ten thousand other neurons to form an incredible three dimensional grid. This grid therefore contains a thousand trillion connections - that's 1,000,000,000,00...
