Blood stress is the pressure of blood towards the partitions of the arteries because the coronary heart pumps blood at some stage in the body. Blood pressure can vary depending on factors such as physical activity, stress, and health conditions. Normal blood pressure is less than 120/80 mm Hg, while high blood pressure (hypertension) is 130/80 mm Hg or higher. High blood strain can harm the blood vessels and boom the chance of coronary heart sickness and stroke. Low blood pressure (hypotension) is less than 90/60 mm Hg and can cause dizziness, fainting, or shock.