The NHS has issued a new warning, urging people to do a simple check. And it could save their life. Calling it a "silent killer" and taking to X, NHS England posted: "Searches for advice on high blood pressure surged in 2025, making it the second most-viewed condition on the NHS website. High blood pressure is a ‘silent killer’, and the NHS is urging people to get a simple blood pressure check." On its website, the health service notes that it's "estimated that around 4.1 million people in