The cause of death of fitness blogger Ivanov was acute heart failure.

The cause of death of fitness blogger Vadim Ivanov, known as Do4a, was acute heart failure. His wife told about it on July 21.

"Many of you remember that Vadim had serious heart problems. The last year has been a real challenge for our family. Since June 2025, his condition has been rapidly deteriorating, and the last six months have been especially difficult," she wrote on the Telegram channel.

She said that the blogger was diagnosed with acute heart failure. In addition, Ivanov was undergoing an examination for a heart transplant and was preparing for surgery, but there was not enough time, his wife said.

"Myocardial infarction and stroke in Russia have become 10 years younger"

Cardiologist Andrey Pronin — on modern risk factors for cardiovascular diseases and their diagnosis using AI

Blogger Vadim Ivanov died at the age of 37 on July 20. The publication notes that the last year has been difficult for Ivanov: he fought for his health, tried to regain strength after several heart attacks.

The man was born in Berdsk, and in 2014 he moved to St. Petersburg. He is survived by his wife and son. He was a master of sports in bench press and a candidate for master of sports in powerlifting. Farewell to Ivanov will take place on July 22 at 11:00 a.m. at 8 Partizanskaya Street.