https://www.123articleonline.com/rss/author/380854/hannah-coleArticles written by Hannah Cole from 123ArticleOnline.comen-usCopyright (c) 123ArticleOnline.com All rights reserved. https://www.123articleonline.com/articles/1362236/new-approach-to-successfully-purify-and-characterize-human-neural-stem-cells Human brain has approximately 171 billion cells, of which slightly more than half (approximately 86 billion) are nerve cells.