The Full form of HTN is Hypertension. HTN is another name for high blood pressure. It can lead to severe complications and increases the risk of stroke, heart diseases, and death. Blood pressure is the force exerted by the blood against the walls of the blood vessels. The pressure depends on the work being done by the heart and the resistance of the blood vessels. Normal blood pressure is 120/80 mm of mercury (mmHg), but hypertension is higher than 130/80 mmHg. Unmanaged hypertension can lead to a heart attack, stroke, and other problems. Lifestyle factors are the best way to address high blood pressure. The cause of HTN is often not known. Around 1 in every 20 cases of HTN is the effect of an underlying condition or medication. CKD (Chronic kidney disease) is a common cause of high blood pressure because the kidneys do not filter out the fluid. This excess fluid leads to hypertension. People with high blood pressure may use medication to treat hypertension. Drugs are usually started one at a time at a low dose. Side effects associated with anti-hypertensive drugs are usually minor. A range of drug types are available to help lower blood pressure, including diuretics, including thiazides, chlorthalidone, and indapamide, beta-blockers and alpha-blockers etc.