On what basis? "Early-Experiences-Can-Alter-Gene-Expression-and-Affect-Long-Term-Development.pdf" http://developingchild.harvard.edu/wp-content/uploads/2010/0

On what basis? "Early-Experiences-Can-Alter-Gene-Expression-and-Affect-Long-Term-Development.pdf" http://developingchild.harvard.edu/wp-content/uploads/2010/05/Early-Experiences-Can-Alter-Gene-Expression-and-Affect-Long-Term-Development.pdf http://developingchild.harvard.edu/wp-content/uploads/2010/0...