According to estimates, what fraction of Australians is diagnosed with cancer by age 85?

The estimate indicating that approximately one in two Australians will be diagnosed with cancer by age 85 highlights the significant prevalence of cancer in the population. This statistic underscores the reality that cancer is a major health concern and emphasizes the need for effective screening, prevention, and treatment strategies.

Understanding this fraction also reflects the advancements in medical technology and healthcare, which have led to improved cancer detection and management. The increase in life expectancy and aging population contribute to the heightened incidence of cancer, as many types are more prevalent in older adults. Therefore, the correct answer emphasizes the critical importance of public health initiatives aimed at cancer awareness, early detection, and supportive care systems for affected individuals.