But ozone as a therapy is controversial, with some experts saying it has healing properties for diseases like cancer and others saying it has no proven benefits. In fact, because it oxidizes organic compounds, ozone can be toxic.
Television actress Suzanne Somers, best known for her sitcom roles as Chrissy Snow in "Three's Company" and Carol Lambert in "Step by Step," has in recent years become a proponent for healthy living and alternative therapies.
Somers stirred up controversy in 2001, when she disclosed on CNN's "Larry King" that she was using a homeopathic drug to help treat her breast cancer. Following conventional surgery and radiation therapy, she chose a therapy using mistletoe injections rather than pursue the recommended chemotherapy after her treatment.
While some mistletoe products are used in other countries for breast cancer treatment, there is no evidence that such injections can cure breast cancer, said Barrie Cassileth, the chief of integrative medicine service at Memorial Sloan-Kettering Cancer Center in an interview for the ABCNews.com OnCall+ Breast Cancer Center. Still, Cassileth said mistletoe products might cause some breast cancer patients to feel better, but there's not enough scientific data on the subject.
Various British media outlets, including The Times and The Daily Record, have said that Beatles legend Paul McCartney is a fan of the Alexander technique. Calls to McCartney's publicist for comment on this were not returned.
Not so much a treatment as a therapeutic practice, the Alexander technique is a series of movements designed to change balance, movement, breathing and thinking.
Actor Frederick Alexander developed the technique in the 1940s to help his voice and breathing.
Mainstream medicine has done few studies of the Alexander technique; however, some small studies in Britain have shown the Alexander technique to be more effective than massage or exercise for back pain.
Sarah Ferguson, the former Duchess of York, can add health writer to her copious resume. According to an article in the March 2004 issue of W magazine, Fergie and her two daughters, Princesses Beatrice and Eugenie, received bio-energy treatments from Russian energy healer Alla Svirinskaya. Fergie was so impressed with the treatments, she wrote the foreword to her healer's 2005 book "Energy Secrets: The Ultimate Well-Being Plan."
Svirinskaya is a fifth-generation healer, according to W, and practices in Notting Hill, a neighborhood in West London.