Millions more people around the  have high blood pressure. For many , doctors said high blood pressure started at a  of 140 over 90. The American Heart Association (AHA) changed these . It said the disease should be treated . It said high blood pressure now starts at 130 over 80. Blood pressure is when your  pushes blood around your . If this pushing is too , it puts stress on your heart and arteries. This can lead to heart attacks and . Normal blood pressure is  than 120 over 80.
Health problems can happen at 130 over 80. The AHA said it is  for people to have this level of blood pressure without . The new reading is "a  light" that warns you need to  your blood pressure, mainly without medicine. People with high blood pressure need to make  changes. They should lose weight, exercise more, eat  food, avoid  and salt, quit smoking, and avoid stress. The  reading of 130 over 80 means that 46 per cent of  in the USA have high blood pressure. This is up from 32 per cent using the old .