Maradona was addicted to cocaine from the mid-1980s until 2004. During his time at Napoli, he failed a drug test in 1991 and had his conversations wiretapped by police. He was also accused of working with the Italian mafia. In 2000 he suffered a heart attack caused by cocaine overdose. In 2004, he was placed in intensive care with high blood pressure, respiratory failure, and a lung infection. 