Beral then spent six months travelling the "hippie trail" through Asia of which she said "That taught me how much I wanted to work. But I still wanted to leave Australia."[9] She then travelled to England and successfully applied for a job at the Hammersmith Hospital.[citation needed]
At Hammersmith Hospital, she worked under Charles Fletcher, who recognised that she was suited to epidemiology and so propelled her towards the London School of Hygiene and Tropical Medicine. There she completed a combined course in Epidemiology & Statistics in 1971–72 under the tutorship of Donald Reid. Beral felt very comfortable with the move because she had never felt happy in clinical medicine. She says that "she had never been able to understand how her peers could be so certain about making decisions on incomplete evidence. Epidemiology has offered her not an escape from that uncertainty, but the opportunity to tackle it head on."[9] She was a member of the Royal College of Physicians.
One of Beral's first epidemiological interests was the combined oral contraceptive pill because of work she had previously done in family planning. Beral moved on to other projects but this is an area in which the data have yet to provide support for her initial instinct that the contraceptive pill, like pregnancy, will eventually be shown to protect against breast cancer.[9] Later work included the effects of radiation, breast cancer trials and screening, AIDS, gene therapy, Hiroshima survivors, Chernobyl, food toxins, and much else. The British Medical Journal described her tally of jobs, publications, and committees as reading "like a checklist of the epidemiological causes célebres of the past three decades".[9]
Beral completed her training in 1972 and began working for the London School of Hygiene and Tropical Medicine for a number of years. From there she moved to direct the Cancer Research UK Cancer Epidemiology Unit at the University of Oxford in 1989. Beral said of being offered the role: "One of the major deterrents when I was offered the ICRF job in 1989 was the thought of being so much in the public eye. It's not my nature."[9]
Beral was one of the leaders of the Million Women Study[10][11] which was opened in 1997, and has recruited more than 1.3 million UK women over 50 via the NHS breast screening centres. The study is investigating how a woman's reproductive history can affect her health, with a particular focus on the effects of hormone replacement therapy (HRT).[12] It is the largest such study in the world with one in four of UK women in the target age group participating.[10][13]
In August 2003, Beral's group published results showing that taking HRT increases a woman's risk of developing breast cancer with an estimated 20,000 UK women aged 50–64 having possibly developed the disease between 1993 and 2003 due to HRT use.[13] The study also showed that risk increases the longer a woman uses HRT, but drops to the normal level within five years after stopping use.[13]
Donald Reid Medal – in 2006 Beral was recognised by the London School of Hygiene and Tropical Medicine for her ground-breaking work in cancer epidemiology and women's health, most notably through the Million Women study, as well as her earlier contributions to the School.
Companion of the Order of Australia (AC) in the 2010 Queen's Birthday Honours List "for eminent service to medicine and women's health through significant advances in cancer research and epidemiology, through seminal contributions to public health policy and as a mentor to young scientists."[16]
Beral lived in Oxford with her American husband, Paul Fine, who worked at the London School of Hygiene and Tropical Medicine.[9][18]
Beral maintained close links with Australia but "could not imagine returning to live there". Aside from concerns that Australia would hold little for her partner, she joked that "The population's too small!" to satisfy her needs as an epidemiologist.[9]
Beral died on 26 August 2022, at the age of 76, after a year-long illness. She was survived by her husband, their two sons, two grandchildren, and her sister.[19]
