The document discusses guidelines for the treatment of hypertension. It provides a history of changes to major hypertension guidelines over time, including changes in target blood pressure levels and recommendations for first-line treatment options. It also reviews compelling indications for specific antihypertensive drug classes based on concomitant diseases or conditions. The guidelines emphasize lifestyle modifications and use of diuretics, ACE inhibitors, angiotensin receptor blockers, or calcium channel blockers as preferred initial treatment options for most patients with hypertension.