The Block 2026 contestant Courtney experienced 15 supraventricular tachycardia episodes during production. She is 34 years old when she collapsed during episode 14. Emergency responders rushed to assist her on set. Crew members and fellow contestants were left shaken. The sudden heart issue caused a short filming shutdown. Daily Mail detailed the brief stop.
Contestant Lisa remained beside Courtney during the episodes. She helped support her through the frightening ordeal. Nine.com.au and Who.com.au reported on the medical intervention. They noted how quickly a health crisis can develop and the shock it caused among the team.