1) Hypertension is also known as high blood pressure. It is a condition which the blood vessels have persistently raised pressure.
2) It may cause memory loss, stroke, chest pain, heart attack and severe damage to your body's main artery.
3) A pacemaker is a small, battery-operated device. This device senses when your heart is beating irregularly or too slowly. It sends a signal to your heart that makes your heart beat at the correct pace.