Watch this 5-minute video about the study.
You might find it useful to:
- View the video fullscreen, after pressing play, by clicking the two arrows that appear in the bottom right-hand corner.
- Watch it more than once.
- Watch it at a slower speed.
- Watch it with someone else who can pause, rewind, and discuss it with you.
- Read the video transcript.
- Make a note of questions you want to ask.

Help us find out if medicines like aspirin protect people with bleeding in the brain from strokes, heart attacks, and death
Register your interest if you live in the UK*
*Available from March 2025