The Block 2026 contestant Courtney suffered 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 expressed immediate concern. The underlying heart condition caused a short filming shutdown. Daily Mail detailed the brief stop.
Contestant Lisa remained alongside Courtney during the episodes. She supported her through the frightening ordeal. Nine.com.au and Who.com.au outlined the medical intervention. They noted how quickly a health crisis can unfold and the shock it created across the team.