relatives. According to a newspaper report, sources close to the singer said legal action was taken out of concern for the safety of Winehouse and those close to her. Respiratory and other health 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. He said that these problems had been caused by her chain smoking crack cocaine. 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. British Lung Foundation spokesman Keith Prowse noted this type of condition could be managed with treatment. Prowse also said the condition was not normal for a person her age but "heavy smoking and inhaling other substances like drugs can age the lungs prematurely." Norman H. Edelman of the American Lung Association explained that if she stopped smoking, her lung functions would decline at the rate of a normal person, but continued smoking would lead to a more rapid decline in lung function. Winehouse was released from the London Clinic 24 hours after returning from a temporary leave to perform at Nelson Mandela's 90th birthday and at a concert in Glastonbury, and continued receiving treatment as an outpatient. In July 2008, Winehouse stated that she had been diagnosed with "some areas of emphysema" and said she was getting herself together by "eating loads of healthy food, sleeping loads, playing my guitar, making music and writing letters to my husband every day." She also kept a vertical tanning bed in her flat. Winehouse began precautionary testing on her lungs and chest on 25 October 2008 at the London Clinic for what was reported as a chest infection. Winehouse was in and out of the facility and was granted permission to set her own schedule regarding home leave. She returned to the hospital on 23 November 2008 for a reported reaction to her medication. Death Winehouse's bodyguard said that he had arrived at her residence three days before her death and felt