Funny you mention that!  I left in October 2015, so it was long after their emotion contagion experiment.  But I&#x27;ve often wondered if I fell into that experiment group, because I&#x27;ve felt much happier &amp; calmer since leaving Facebook.<p>I&#x27;ve deactivated my account for short periods before, so it&#x27;s possible I may have deactivated previously during the experiment.  But 7 months is the longest I&#x27;ve stayed deactivated &amp; I have no desire to return to FB this time.