Mentions of "mental health" on TV news picked up in early 2011, remained elevated since 2013, increased again in 2017 and ramped up sharply from the start of 2021, peaking in mid-202 and have been declining since.
Looking at Google Trends search interest since 2004, searches appear to have picked up in 2012, lagging TV news mentions just slightly, peaking in May 2022 and declining since – largely mirroring the results of TV news.