Where should compressions be performed during adult CPR?

Compressions during adult CPR should be performed on the lower half of the sternum. This area is critical because proper placement ensures the effective delivery of compressions directly to the heart, which is located just behind the sternum in the center of the chest. The lower half of the sternum provides a balance between being close enough to the heart to maintain circulation and avoiding injury to the ribs or other organs in the thoracic cavity that are located higher up.

This technique is also supported by guidelines from organizations such as the American Heart Association, which emphasize the importance of compressing deeply and quickly at the appropriate location to maximize blood flow during cardiac arrest. Compressions performed in this area are more likely to generate adequate pressure to circulate blood to vital organs, thereby increasing the chances of survival until advanced medical care can be administered.