A recent article in the CDC’s Preventing Chronic Disease highlights that by 2020, cancer will be the leading cause of death instead of heart disease. Since the 1960s the overall number of heart disease deaths declined and cancer deaths increased.
Weir HK, Anderson RN, Coleman King SM, Soman A, Thompson TD, Hong Y, et al. Heart Disease and Cancer Deaths — Trends and Projections in the United State969–2020. Prev Chronic Dis 2016;13:160211. DOI: http://dx.doi.org/10.5888/pcd13.160211.
For more details, see https://nnlm.gov/bhic/jndv