The decision has been made on the recommendation of his medical team, following extensive consultations with leading cardiologists both in the United Kingdom and Europe.
Since suffering my heart attack and being discharged from hospital, I have remained utterly positive in the belief I could one day resume my playing career and play for Bolton Wanderers once again.
As part of my on-going recovery, last week I travelled to Belgium to seek further medical advice from a leading cardiologist.
But the news I received was obviously not what I had hoped it would be and it means I am now announcing my retirement from professional football.
More top news
The Duke of Cambridge has met the mother of a young man who took his own life as he opened a centre for helping suicidal men.
Barber Simon Townley is heading to St Petersburg following the Three Lions' win against Tunisia.
One of the UK's first integrated anti-stalking units is being launched by Cheshire Police. It aims to support victims and cut reoffending.