No, a blood pressure reading of 140 over 70 is not bad. In fact, it is considered to be ideal, as it is within the normal range for adults. The top number, or systolic pressure, should be between 90 and 120, and the bottom number, or diastolic pressure, should be between 60 and 80. Anything above 140/90 is considered high, and requires medical attention.
High blood pressure is a major risk factor for cardiovascular disease, stroke, and other serious health issues. It is important to maintain a healthy lifestyle, including regular exercise, a balanced diet, and avoiding stress, to keep your blood pressure in the normal range. If your blood pressure is consistently higher than 140/90, you should speak to your doctor about lifestyle changes, and possibly medication, to help bring it back down.