Players in the Premier League enjoy more longevity to their careers in the modern game with improved fitness and nutrition - and the former Aston Villa and Coventry City midfield man, signed by Steve McClaren for £5million in August 2002, is adamant that he is still able to operate at the top level.
"I'm 32, and in football terms people think you're old," he said. "But my mind and my body does not tell me that I am old, and the games that I have played say that I am not old.
"Yes, over the years you get tired and fatigued with the ageing process but I don't feel that the time is here for me to think I can play just one game a month."
The Dutchman is a firm fans' favourite at the Riverside and he has admitted the pull of the support is something that keeps him going.
We played Sunderland - I was on the bench and it killed me because it was a derby and it meant so much
Boro captain George Boateng
"I don't want the fans to see me less than what I've been over the last five and a half years," he said.
"I want to come to work, to the stadium holding my head high and look people in the eye and them to say 'He was a good player'."
Since arriving at Boro, he has claimed a Carling Cup winners' medal, played European football and now feels Teesside has become a place very close to his heart.
"When I came here I had no children, and now I have two beautiful children and they were both born here, one in Stockton, one in Middlesbrough," he said.
"I've been here so long and I feel like I'm local.
"When we played Sunderland it was the first time I was on the bench and it killed me because it was a derby and it meant so much."
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