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Social media has changed the
, for good and for
. The USA's top doctor said one bad thing is it can cause mental health
. Dr Vivek Murthy wants social media companies to put mental health
on their sites. He is worried about the
social media does to young people. He said youngsters see too much
sexual and violent content. Murthy said: "It is time to require a…
label…stating that social media is associated with
mental health harms for adolescents." He said
were also needed to keep young people
online.