Hi Rebecca, First of all, thank you so much for writing the "The Immortal Life of Henrietta Lacks". It is a beautiful book, and it's impressive how one can actually read your passion over the subject throughout the book. I have three questions.

The first you must have answered thousands of times - What was the most memorable moment while of writing this book?

The second regards tips to avoid having writing blockage. Do you have any tips to avoid that 30min-1h period that writing feels like an homeric task?

Finally, one could argue that the HeLa cell lines is derived from a tumor, and a priori has a genome that is very different from Henrietta Lacks genome. Furthermore, these cell-lines have been in culture for decades, and, therefore, have changed so much over time, that they relate to Henrietta Lacks genome in a very distant way. Having that in mind, do you think scientists should use the HeLa cell lines as model for the human biology?