You get trapped by stories. Though I've got this reputation for being out of control, it's not true, it just happens to be a more interesting story than the truth.
“Why do the Yankees always win? The other team can't stop looking at the pinstripes.”
“Using adult stem cells drawn from bone marrow and umbilical cord blood system cells, scientists have discovered new treatments for scores of diseases and conditions such as Parkinson's disease, juvenile diabetes, and spinal cord injuries.”