FORMULA ONE legend Sir Jackie Stewart has bravely recalled the moment his wife forgot who he was. Helen Stewart, 84, was diagnosed with frontotemporal dementia in 2014 after losing control of her car.

You likely know the name Sir Jackie Stewart; he is, after all, a three-time Formula 1 World Champion. His most recent championship was won behind the wheel of a Tyrrell 006, back in 1973 ...

Sir Jackie Stewart, the three-times F1 champion ... The three-times F1 champion, who was born in Milton, Dunbartonshire, spoke as his charity Race Against Dementia started funding a new dementia ...

Former world champion takes title car round Bahrain circuit 'That's it', says Stewart after pre-race lap of honour Scotsman's helmet likely to be auctioned for charity SAKHIR, Bahrain, April 13 ...

Sir Jackie Stewart and his wife Helen following the funeral of Justin Wilson at St James the Great Church in Northamptonshire in 2015 | PA The three-times F1 champion, who was born in Milton ...