Hayley McNeff’s Cause of Death Confirmed
The tragic story of Hayley McNeff, a well-known American bodybuilder and social media influencer, has taken a somber turn with the confirmation of her cause of death.
At the age of 37, McNeff passed away in August in her home in Sudbury, Massachusetts. An official report has now established that her death was due to acute poisoning, resulting from the combined effects of multiple intoxicating substances.
According to an investigation by the Massachusetts State Public Safety Agency, a toxicology report revealed the presence of a dangerous cocktail in her system, including heroin, fentanyl, 4-ANPP, cocaine, and norbuprenorphine. Authorities have classified her death as an accident, highlighting the tragic circumstances surrounding her passing.
McNeff rose to prominence in the 2000s, becoming a standout figure in the bodybuilding community. Her career reached a significant milestone in 2009 when she claimed the overall title at the prestigious East Coast Classic, solidifying her status as a top competitor in the sport. Her journey was further documented in the film Raising The Bar, which captured her life and contributions to bodybuilding.
Remembering a Bright Spirit
Those who knew McNeff remember her as a person radiating warmth and kindness.
“Hayley was known for her wit and sense of humor. She had a remarkable ability to make those around her laugh and feel welcome,” her obituary notes, reflecting the outpour of affection from friends and family.
As the bodybuilding world mourns her loss, McNeff’s legacy lives on through the memories of those who cherished her vibrant spirit.

