Get latest articles and stories on Health at LatestLY. According to a study co-led by researchers at Weill Cornell Medicine, NewYork-Presbyterian, the New York Genome Center, Harvard Medical School, and Dana-Farber Cancer Institute, a typical, spontaneous mutation in blood stem cells, which has been linked to higher risks of blood cancer and cardiovascular disease, may promote these diseases by altering the stem cells' programming of gene activity and the variety of blood cells they produce. Health News | Study Sheds Light on Blood Cells' Precancerous 'clonal Expansion'.