Limitless,, Upgrade Your Brain, Learn Anything Faster, and Unlock Your Exceptional Life

CHAPTER 3

1. 
   Tara Swart, The Source: Open Your Mind, Change Your Life (New York: Vermilion, 2019).
   
2. 
   Suzana Herculano-Houzel, “The Human Brain in Numbers: a Linearly Scaled-up Primate Brain,” Frontiers in Human Neuroscience, November 9, 2009, www.ncbi.nlm.nih.gov/pmc/articles/PMC 2776484/.
   
3. 
   Ferris Jabr, “Cache Cab: Taxi Drivers’ Brains Grow to Navigate London’s Streets,” Scientific American, December 8, 2011, www.scientificamerican.com/article/london-taxi-memory/.
   
4. 
   Courtney E. Ackerman, “What Is Neuroplasticity? A Psychologist Explains [+14 Exercises],” Po sitivePsychology.com, last modified September 10, 2019, positivepsychology.com/neuroplasticit y/.
   
5. 
   Catharine Paddock, Ph.D., “Not Only Does Our Gut Have Brain Cells It Can Also Grow New Ones, Study,” Medical News Today, last modified August 5, 2009, https://www.medicalnewstod ay.com/articles/159914.php; Jennifer Wolkin, “Meet Your Second Brain: The Gut,” Mindful, last modified August 14, 2015, https://www.mindful.org/meet-your-second-brain-the-gut/.
   
6. 
   Emily Underwood, “Your Gut Is Directly Connected to Your Brain, by a Newly Discovered Neuron Circuit,” Science, last modified September 20, 2018, https://www.sciencemag.org/news/ 2018/09/your-gut-directly-connected-your-brain-newly-discovered-neuron-circuit.
   
7. 
   Ken Robinson and Lou Aronica, Creative Schools: The Grassroots Revolution That’s Transforming Education (New York: Penguin Books, 2016), xxvii-xxvii.
   

CHAPTER 4

1. 
   Sonnad, Nikhil. “A Mathematical Model of the ‘Forgetting Curve’ Proves Learning Is Hard.” Quartz, February 28, 2018, qz.com/1213768/the-forgetting-curve-explains-why-humans-struggle
   

-to-memorize/.

2. 
   Francesco Cirillo, “The Pomodoro Technique,” Cirillo Consulting, francescocirillo.com/pages/po modoro-technique.
   
3. 
   Oliver Wendell Holmes, “The Autocrat of the Breakfast-Table,” Atlantic Monthly 2, no. 8 (June 1858): 502.