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AI wearable sleeve detects early frailty — Level A1 — a close-up of a belt

AI wearable sleeve detects early frailtyCEFR A1

26 Dec 2025

LevelA1A2B1B2

Adapted from U. Arizona, Futurity • CC BY 4.0

Photo by set.sj, Unsplash

Level A1 – Beginner
2 min
68 words
  • Researchers at the University of Arizona made a device.
  • It is a soft sleeve for the leg.
  • Older people can wear it on their thigh.
  • Tiny sensors watch movement and steps.
  • The device uses AI to check health.
  • It sends results to a phone.
  • It charges without plugging in.
  • Early checks can help prevent falls.
  • This helps doctors act before a fall.
  • The team calls the design invisible.

Difficult words

  • researcher — a person who studies and finds facts
    Researchers
  • sleeve — a cover that fits around an arm or leg
  • sensor — a small device that detects movement or changes
    sensors
  • thigh — the top part of the leg
  • prevent — to stop something from happening
  • invisible — cannot be seen with the eyes

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Would you wear a device like this? Why or why not?
  • Do you think this device could help older people?
  • Have you used a device that sends information to a phone?

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