![]() ![]() Rumor has it that he spent so much money that he couldn’t afford a nanny, and even had trouble buying curtains. Instead, the brain is made of lots of individual cells-what we now call “neurons.” Ramón y Cajal recognized the importance of his finding, and spent much of his salary to send printed copies of his results to scientists around the world. People used to think that the nervous system was made of a single, enormous mass, but Santiago Ramón y Cajal, a Spanish scientist, looked into his microscope in the late 1800s and discovered that the world was wrong. ![]() Listen to the audio version-read by Sara herself-in the Next Big Idea App. Her writing can be found in the New York Times, Boston Globe Magazine, and the Philadelphia Inquirer.īelow, Sara shares 5 key insights from A Molecule Away from Madness: Tales of the Hijacked Brain. ![]() Her new book is about people whose personalities have been upended by single molecules, and about the scientists who work to bring patients back from the brink. Sara Manning Peskin is a cognitive neurologist at the University of Pennsylvania. ![]()
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