📖+10 XP
🎧+10 XP
✅+15 XP
Level A1 – BeginnerCEFR A1
2 min
83 words
- Lead is dangerous and harms children's growth and health.
- It builds up and stays in human tissue for years.
- Researchers studied human hair from long ago and today.
- They used samples from one region near Utah cities.
- Some hair came from family scrapbooks saved long ago.
- Hair can keep lead on its surface for years.
- Scientists tested single hairs to find lead.
- Tests show big drops after 1970s rules.
- Those rules reduced lead in the environment.
- The change helps protect children's health now.
Difficult words
- lead — A heavy metal that can make people sick
- tissue — Parts inside the body such as skin and muscle
- researcher — A person who studies and tests thingsResearchers
- sample — A small piece taken for study or testsamples
- surface — The outside part of something like hair
- environment — The air, land, and water around people
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Do you have old family scrapbooks?
- Do you think rules about lead help children?
- Have you seen hair used in a science test?
Related articles
13 May 2026
22 Nov 2025
9 Jul 2025
22 Dec 2025
8 Oct 2024
Dementia rising in Africa as researchers seek answers
Dementia is increasing in Africa as populations age. Research and evidence in the region are limited, so scientists study genetics, new detection tools and community measures while working with traditional healers to reduce stigma.