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#7 SSRIs — Effective but Overprescribed, Mechanism Unknown
At 1:21:38 · chapter starts 1:07:30
Antidepressants (Prozac, Zoloft, Lexapro) occupy a paradoxical position: the Cochrane Review confirms they work, yet recent meta-analyses spanning decades have failed to establish a reliable link between serotonin levels and depression or anxiety, effectively dismantling the 'chemical imbalance' theory. Effect sizes were large in early trials conducted on the most severe cases, but have moderated as prescription has expanded to milder presentations. Side effects — sexual dysfunction, emotional blunting — are common enough to drive many patients off medication. Manson draws a distinction between clinical anxiety (probably genetic, likely requires medical intervention) and subclinical anxiety (contextual, addressable through lifestyle), arguing SSRIs are probably life-changing for the former and likely overkill for the latter. He and Drew also discuss the broader labeling problem: therapy culture's tendency to diagnose everyone with clinical-level anxiety when most people simply have high neuroticism or stressful lives.
Loneliness strongly predicts anxiety, but having a strong social network doesn't necessarily prevent anxiety — it functions as a protective buffer. Crucially, just believing you have social support reduces anxiety more than actually receiving it. The baseline: don't be isolated.