Level A1 – BeginnerCEFR A1
2 min
77 words
- Scientists study the brain of mice every single day.
- They look at many small signals in the brain.
- Special lights help researchers see the signals.
- Pictures show when and where signals change.
- Signals move around inside the brain daily.
- When mice wake, signals start deep inside.
- Later the signals move toward the brain surface.
- The team wants to find signs of tiredness.
- Such signs could help safety in jobs.
- The groups share tools and ideas across countries.
Difficult words
- signal — a small change that gives informationSignals
- researcher — a person who studies or tests thingsresearchers
- surface — the outside part or top of something
- tiredness — the state of feeling very low energy
- safety — the state of being free from danger
- share — to give or use something with others
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you ever seen pictures of a brain?
- Would signs of tiredness help at work?
- Do you like science?
Related articles
25 Feb 2025
15 Dec 2025
When to Give a Child a Phone and Why Some Families Use Landlines
Child development experts say middle school is often a good time for a personal phone. Some parents choose a home landline because it limits apps and supports family conversations. Experts advise guided use rather than banning technology.
22 Dec 2025
24 Dec 2025
How mangroves survive saltwater
Scientists studied mangrove trees to learn why some plants tolerate repeated saltwater flooding. They found small cells and thicker cell walls help mangroves stay strong in salty, waterlogged conditions and suggest this could help make crops more salt-tolerant.
5 Dec 2025