Folks figuring out how to take their blood pressure at home might be tempted to use online stock photos to see how it's done -- but they really shouldn't, a new study warns. Only about 1 in 7 stock photos found online correctly depict the right way to measure blood pressure, researchers reported in the journal Hypertension . "We expected that about 50% of images would be accurate. However, our findings were worse than expected," said lead researcher Alta Schutte , a professor of cardiovascular