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Industrialized lifestyles alter gut estrogen recycling (Level A1) — The image shows the human small intestine.

Industrialized lifestyles alter gut estrogen recyclingCEFR A1

29 Apr 2026

LevelA1
A2
B1
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Adapted from Yale, Futurity • CC BY 4.0

Photo by Aakash Dhage, Unsplash

Level A1 – Beginner
2 min
71 words
  • People study the gut microbiome.
  • The microbiome helps control estrogen in the body.
  • Estrogen affects growth and health.
  • Industrial lifestyles change the microbiome and its work.
  • Researchers compared many people in different places.
  • The work looked at babies and adults.
  • Formula-fed babies had different microbes than breastfed babies.
  • Microbes can turn discarded estrogen back into blood.
  • These changes can begin early in life.
  • Scientists now want to find exact causes.

Difficult words

  • microbiome — All tiny living organisms in a body area
    gut microbiome
  • estrogen — A body chemical that affects growth and health
    discarded estrogen
  • industrial — Related to factories and modern work and cities
  • researcher — A person who studies and tests things
    Researchers
  • formula-fed — Given baby milk from a bottle, not breast
  • microbe — A very small living thing, like a germ
    Microbes

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

Discussion questions

  • Do you think microbes help health?
  • Do you live in a city or a town?
  • Were you breastfed or formula-fed as a baby?

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