Woman went for a leisurely bike ride – but then made a life-changing discovery

Health & Fitness
20 Apr 2026 • 4:01 PM MYT
The Independent
The Independent

The world’s most free-thinking newspaper

Woman went for a leisurely bike ride – but then made a life-changing discovery

  • Diana Warren, 55, from Essex, discovered she had a significant heart defect, an Atrial Septal Defect (ASD), after collapsing during a bike ride in June 2022.
  • The defect, a hole in her heart the size of a two pence piece, had gone undiagnosed for over five decades despite her active lifestyle.
  • After initial attempts at keyhole surgery were unsuccessful, Ms Warren underwent open heart surgery in April 2024, during which she also received a pacemaker.
  • Now recovered, she is preparing to cycle 54 miles from London to Brighton on 21 June for the British Heart Foundation, alongside her brother and sister-in-law.
  • Ms Warren is fundraising to give back to the British Heart Foundation, acknowledging the vital support they offer to individuals with heart conditions.

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