Transient ischaemic attack
Five questions people ask, put to Google AI Overviews, Google AI Mode and ChatGPT in November 2026.
Led with the right place
Led with the right place
Led with the right place
Led with the right place
Led with the right placeNovember 2026
AI Overviews
1 of 1
AI Mode
0 of 1
ChatGPT
1 of 1
ChatGPTHistory starts when there is a second month to compare. November 2026 is the first.
Got the NHS facts right
Got the NHS facts right
Got the NHS facts right
Got the NHS facts right
Got the NHS facts rightNovember 2026
AI Overviews
3 of 3
AI Mode
3 of 3
ChatGPT
3 of 3
History starts when there is a second month to compare. November 2026 is the first.
Cited NHS or accredited sources
11 of 14 answers with sources
Cited NHS or accredited sources
Cited NHS or accredited sources
Cited NHS or accredited sources
Cited NHS or accredited sourcesNovember 2026
AI Overviews
4 of 5
AI Mode
4 of 5
ChatGPT
3 of 4
History starts when there is a second month to compare. November 2026 is the first.
The questions
Question
The NHS says
AI Overviews
AI Mode
ChatGPT
my arm went weak and my speech was slurred this morning but it's gone now, do I need to do anything
Call 999
Google AI Overviews
Led with the right place
The NHS says call 999
The NHS says call 999
●Less urgent on AI Mode
Google AI Mode
Get help today
The NHS says call 999
The NHS says call 999
ChatGPT (logged out)
Led with the right place
The NHS says call 999
The NHS says call 999
Is there an NHS number to ring for help giving up smoking after a TIA?
0300 123 1044
Google AI Overviews
Yes
The NHS says smokefree: 0300 123 1044
The NHS says smokefree: 0300 123 1044
Google AI Mode
Yes
The NHS says smokefree: 0300 123 1044
The NHS says smokefree: 0300 123 1044
ChatGPT (logged out)
Yes
The NHS says smokefree: 0300 123 1044
The NHS says smokefree: 0300 123 1044
What is the maximum amount of salt I should eat a day to lower my TIA risk?
6g a day
Google AI Overviews
Matches the NHS
The NHS says no more than 6g salt
The NHS says no more than 6g salt
Google AI Mode
Matches the NHS
The NHS says no more than 6g salt
The NHS says no more than 6g salt
ChatGPT (logged out)
Matches the NHS
The NHS says no more than 6g salt
The NHS says no more than 6g salt
Do doctors give aspirin if they think you've had a TIA?
Straight away
Google AI Overviews
Matches the NHS
The NHS says aspirin given straight away unless contraindicated
The NHS says aspirin given straight away unless contraindicated
Google AI Mode
Matches the NHS
The NHS says aspirin given straight away unless contraindicated
The NHS says aspirin given straight away unless contraindicated
ChatGPT (logged out)
Matches the NHS
The NHS says aspirin given straight away unless contraindicated
The NHS says aspirin given straight away unless contraindicated
Does a TIA or mini stroke need urgent treatment if the symptoms went away?
Urgent
Google AI Overviews
Matches the NHS
The NHS says treat as urgent medical emergency
The NHS says treat as urgent medical emergency
Google AI Mode
Matches the NHS
The NHS says treat as urgent medical emergency
The NHS says treat as urgent medical emergency
ChatGPT (logged out)
Matches the NHS
The NHS says treat as urgent medical emergency
The NHS says treat as urgent medical emergency
Matches the NHS
Differs from the NHS
Where the answers came from
Where the answers came from
NHS website4
Facebook2 JAMA Network1 American Diabetes Association journals1 unknown1
Cleveland Clinic1 
Where the answers came from
Where the answers came from
NHS website3
National Institute for Health and Care Excellence (NICE)2 European Stroke Organisation1