Gratitude after giving blood: a happiness boost?
NCT ID NCT05213130
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether telling blood donors that their blood saved a life makes them feel happier. Over 600 donors in China were randomly split into two groups: one received a gratitude message, the other did not. Both groups filled out happiness surveys right after donating and again a few weeks later.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- What this could lead to
- If it works, this could point toward simple ways to boost well-being in blood donors.
- What could go wrong
- This is a small, completed study with no active treatment. Results may not apply to other groups or settings.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Guangzhou Blood Center
Guangzhou, Guangdong, 510095, China
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