Dermatology Quiz: Answers

Answers to the dermatology pop quiz. (1) True: US drivers get more left-sided facial skin cancer from left-window UV exposure. (2) False: a deliberately-invented distractor (though a commenter found a sneaky case for it). (3) True: Botox treats depression in an RCT (52% response vs 15% placebo), with the facial-feedback hypothesis offered as the likely mechanism (paralyzing frown muscles makes sadness harder to feel; it also lifts mood in non-depressed people). Scott muses about Botox-for-happiness in the utilitarian calculus — 'just once I want to learn an interesting medical fact that doesn't end up as a plan to drug the entire population.' CAVEAT: the proposed facial-feedback mechanism is now-shaky (a famous replication-crisis casualty); the Botox-depression RCT itself is a separate clinical finding.

Quality 52 · Solid. 52 — Solid. A quiz-answers stub lifted slightly above a pure stub by one genuinely interesting nugget (the Botox-treats-depression RCT), but mostly brief answer-explanations.

Claude’s paradigm shift 25 · Slight. 25 — Slight; quiz answers, the interesting finding not Scott's.

Real-world impact 1 · Negligible. 1 — a quiz-answers post; negligible reach.