- Rats were in a laboratory study.
- The study gave rats cannabis vapor.
- Each rat could get vapor by poking.
- Research students counted the pokes.
- Some rats made many pokes.
- Those rats had higher stress levels.
- Other rats made few pokes.
- Scientists think stress links to use.
Difficult words
- laboratory — a room where scientists do tests
- cannabis — a plant used to make some drugs
- vapor — tiny drops or gas in the air
- poke — a quick touch or pushpokes
- stress — a feeling of worry or pressure
- scientist — a person who studies scienceScientists
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you ever felt stress?
- Would you poke to get a reward?
- Who would count pokes in a study near you?
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