High blood pressure, also known as hypertension which affects millions also includes teens and children. An ideal BP level for an adult is less than or equal to 120/80. High blood pressure is 140/90 or higher. Various stages of hypertension are: * Normal: less than 120/80 * Prehypertension: 120/80 to 139/89 * High BP Stage 1: 140/90 to 159/99 * Read More ...