Why experts warn against smartphones before age 13

blogdomarcelo@gmail.com // The journalistic website Blog do Marcelo, launched by the Journalist Marcelo T. Krieg in April 2008 originally in Brazil, emerged as an alternative in the online journalistic scenario in America, covering a wide range of subjects. Its personalized and modern layout, combined with objective writing, facilitated access to and understanding of regional, national, and international news for its readers.