The Block 2026 contestant Courtney suffered 15 supraventricular tachycardia episodes while filming. She is 34 years old and collapsed during episode 14. Emergency responders promptly assisted her on set. Crew members and fellow contestants were left shaken. The underlying heart condition forced a short filming shutdown. Daily Mail covered the brief stop.
Contestant Lisa stayed by Courtney during the episodes. She supported her through the distressing situation. Nine.com.au and Who.com.au detailed the medical intervention. They noted how fast a health crisis can occur and the shock it created across the team.