A little wonder, every day

Fact 1602 — a record-breaking eyelash

AI-generated cover: respectful macro of a generic eye and natural upper eyelashes; not You Jianxia. Prompt: “Photorealistic vertical 4:5 editorial cover, extreme macro of a human eye with long natural upper eyelashes in soft neutral daylight, medically respectful and non-retouched, subtle depth of field. Generic unidentified person, not You Jianxia and not a depiction of a record holder. No ruler, text, labels, makeup branding or logos.” Generated 20 October 2026.

оптимізовано з `media/human-eyelashes-closeup-ivan-radic.jpg`: 1844×1230 px (половина початкової ширини й висоти), JPEG quality 82.

AI-generated generic eye beside an out-of-focus metric ruler to illustrate measurement; not the subject or an official measurement. Prompt: “Photorealistic vertical 4:5 educational editorial macro of a natural upper eyelash seen from the side beside a small transparent metric ruler, the ruler markings intentionally out of focus and unreadable. Clean clinical studio lighting, gentle and respectful, no tweezers, no contact lens, no eye procedure. Generic unidentified person; no link to a specific record holder. No text or logos.” Generated 20 October 2026.

close-up of upper and lower eyelid lashes on an Asian male; contextual and not You Jianxia. Photographer Rapidreflex, Wikimedia Commons, https://commons.wikimedia.org/wiki/File:Human_eyelashes.jpg; CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Attribution: Rapidreflex, “Human eyelashes,” CC BY-SA 4.0, via Wikimedia Commons. Original file, no edits; checked 2026-10-18.

AI-generated symbolic comparison of generic eyelashes at two different lengths, reflecting the fact’s historical and later measurement context; not You Jianxia and not an official comparison. Prompt: “Photorealistic vertical 4:5 editorial still life of two clean medical illustration panels showing generic natural upper eyelashes at different lengths, arranged as a visual comparison on a white studio surface. No actual people identified, no measurements or words, no cosmetics, no medical instruments touching an eye. The panels are symbolic illustrations only and do not depict You Jianxia or certify any record.” Generated 20 October 2026.

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AI-generated cover: respectful macro of a generic eye and natural upper eyelashes; not You Jianxia. Prompt: “Photorealistic vertical 4:5 editorial cover, extreme macro of a human eye with long natural upper eyelashes in soft neutral daylight, medically respectful and non-retouched, subtle depth of field. Generic unidentified person, not You Jianxia and not a depiction of a record holder. No ruler, text, labels, makeup branding or logos.” Generated 20 October 2026.

Listen to fact0:00 / —

The *Guinness World Records 2018* edition featured a natural eyelash on You Jianxia’s left upper eyelid measuring 12.40 cm. It was measured in 2016; this historical value is the one associated with the 2018 book. In 2021, Guinness measured You’s eyelash again at 20.5 cm, so 12.40 cm is an earlier result, not the current record.