Respiratory problems
On 23 June 2008, Winehouse's publicist corrected earlier misstatements by Mitch Winehouse that his daughter had early stage emphysema, instead claiming she had signs of what could lead to early-stage emphysema.Mitch Winehouse had also stated that his daughter's lungs were operating at 70 percent capacity and that she had an irregular heartbeat. Mitch Winehouse said that these problems had been caused by her chain smoking and crack cocaine use. The singer’s father also reported that doctors had warned Winehouse that, if she continued smoking crack cocaine, she would have to wear an oxygen mask and would eventually die. In a radio interview, Mitch Winehouse said the singer was responding "fabulously" to treatment, which included being covered with nicotine patches
