"The mean age of those who provided Facebook data was 48 – an age at which people have spent over half their adult lives without the pervasive influence of the internet."
Implying that people aged 48 have been online less than 15 years? I doubt it.
And, of course, anything referencing "BMI" is always pure bullshit.
Enjoy the research dollars while you can, folks, methinks it ain't gonna last.