- Researchers found tiny molecules in the blood.
- The small molecules studied are called piRNAs.
- Scientists found that piRNAs predict short-term survival.
- A simple blood test could find risk earlier.
- The study tested older adults' blood samples.
- The result was confirmed in another group.
- Lower piRNA levels linked with longer life.
- This knowledge could help doctors assess risk earlier.
Difficult words
- molecule — very small part of a substancemolecules
- predict — say what will happen in the future
- survival — continuing to live or stay alive
- risk — possibility of harm or a bad result
- confirm — show that something is true or correctconfirmed
- assess — look at something to judge its value
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Would you take a simple blood test to check health risk?
- Have you ever given a blood sample?
- Do you think doctors should check older adults' blood?
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