How does a blood pressure machine work? Dr Lavan Baskaran explains what a blood pressure machine is. It’s very simple, harmless, and gives you an instant reading. You may feel a bit of pressure around your arm, but this doesn’t last long. According to Gov UK, high blood pressure affects an estimated 32% of adults. Just like kidney disease, there are often ‘no clues’ about who might have high blood pressure, so it really is important to start a conversation with your GP, pharmacist, or nurse. Kno