Just before his 27th birthday, Jerry Lovell-Papenthein collapsed and was clinically dead for 45 minutes.

It turned out he had been living with an undiagnosed heart condition.

Jerry, from Brent Cross, was racing his girlfriend Roxy for a bus at Oxford Circus in London in February 2013 when he felt severe pain in his chest and collapsed.

Roxy called an ambulance, and paramedics struggled desperately to revive him. He was then taken to University College London Hospital. Jerry was put into an induced coma for three days to prevent brain damage.

Jerry described his ordeal: “I suddenly felt severe chest pains and so I stopped running. The last thing I remember is everything slowing down, going quiet and seeing the bus drive past. I woke up three days later to a doctor addressing me by my full name and asking me if I knew who the current prime minister was.

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"I had really bad memory loss - I kept asking the same questions over and over again. At first I had no real comprehension of what had happened to me. All my life I’d just thought that I was a bit rubbish at running and got tired quickly! Slowly my memory came back but to this day it’s still hazy around what happened.”

He had been suffering with a condition called Hypertrophic Cardiomyopathy, where the walls of the heart are thickened, making the heart unable to pump blood around the body effectively.

After spending time in hospital Jerry decided to get active.

He said: “After being in bed for so long I was desperate to get out and move around and this is when I brought my first road bike. I’ve been on my bike ever since, just moving around London and building up my fitness.”

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Jerry decided to take his passion up a gear, joining a cycling club, the Black Cycling network, and to help by taking on the London to Brighton challenge.

Now aged 32, Jerry has completed the the London to Brighton bike ride on Sunday (June 16)

He was one of 16,000 cyclists who raised more than £2 million for The British Heart Foundation.

Jerry says: “I signed up to the London to Brighton Bike Ride to give back to the British Heart Foundation, to say thanks for giving me a second chance at life. The medical treatment and expertise that I received after I had my cardiac arrest was amazing and it saved my life.”

To sponsor Jerry, go to: www.justgiving.com/fundraising/jerry-lovell