This phenomenon, where many people regularly take selfies but most people don't appear to like them has been termed the "selfie paradox 9" by Diefenbach.

迪芬巴赫把这种现象——许多人定期自拍但大多数人好像不喜欢看自拍——称作“自拍悖论”。

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"It was very interesting to see what they did use, what translated going back to Roman times - what has been kept up as far as 'healthy' or 'ways to heal', " said Andrew Diefenbach, a collaborator on the research.

BBC: 'Patent medicines' study X-rays old-time remedies