100,000 women in cancer study

The biggest-ever study into the causes of breast cancer was launched today. It will track 100,000 women for 50 years.

The research aims to find out to what extent genetic factors impact on diet, lifestyle and pregnancy to determine who develops the disease.

Breast cancer kills 35 women in Britain a day. Scientists believe that about half the 40,000 cases a year could be prevented.

Any woman over 18 is eligible to take part in the research, funded by Breakthrough Breast Cancer and The Institute of Cancer Research. Women who want to take part should call 0870 242 4485.