Fitness Influencer Hayley McNeff’s Cause of Death Revealed

Fitness Influencer Hayley McNeff’s Cause of Death Revealed

Hayley McNeff’s cause of death has been revealed. The fitness influencer died from “acute intoxication due to the combined effects of heroin, fentanyl, 4-ANPP, cocaine and norbuprenorphine,” Director of Communications for Massachusetts’s Executive Office of Public Safety and Security, Brenna Galvin, told People in a statement on Monday, November 10. Galvin ruled McNeff’s death an accident, per the report. Us Weekly has reached out for comment. N…

Cause behind 37-year-old bodybuilder Hayley McNeff’s sudden death revealed

The Massachusetts Executive Office of Public Safety and Security confirmed that Hayley McNeff, a former fitness influencer and champion bodybuilder, died from “acute intoxication” due to a fatal mix of heroin, fentanyl, 4-ANPP, cocaine, and norbuprenorphine.

Bodybuilding champion Hayley McNeff's cause of death revealed

She passed away in August.

American fitness influencer Hayley McNeff's cause of death at age 37 revealed

According to a TMZ report on Monday, American fitness influencer Hayley McNeff’s cause of death was a drug overdose.

Champion Bodybuilder Hayley McNeff Cause of Death Released

Hayley McNeff’s death rocked the bodybuilding community over the summer -- and TMZ’s learned her cause of death was a drug overdose.

Bodybuilder Hayley McNeff's Cause of Death Revealed as Acute Intoxication from Fentanyl, Heroin, and Cocaine

In early August, fitness influencer and Women’s Bodybuilder Hayley McNeff died unexpectedly at just 37 years old. On Nov. 11, 2025, it was revealed that her death was accidental from a number of drugs found in her system.  Brenna Galvin, the Deputy Director of Communications for Massachusetts’s Executive Office of Public Safety and Security, explained […]