John J. Ratey and Eric Hagerman, Spark: The Revolutionary New Science of Exercise and the Brain (Boston: Little, Brown, 2008), .
232
Mark P. Mattson, Stuart Maudsley, and Bronwen Martin, “BDNF and 5-HT: A Dynamic Duo in Age-Related Neuronal Plasticity and Neurodegenerative Disorders,” Trends in Neurosciences 27, no. 10 (October 2004): 589–594, DOI: .
