Olive leaves - among numerous other benefits - provides heart benefits, in two primary ways. 

Firstly, it can help to significantly lower high blood pressure levels. Extracts have been demonstrated to prevent and treat hypertension. Secondly, Olive leaf is beneficial for arterial health. The cells lining the arterial walls, called endothelial cells, play a crucial role in maintaining blood flow and pressure. Endothelial dysfunction is one of the earliest phases of the hardening of arteries (atherosclerosis), and Olive leaf has been shown to support their health.

Leaves contain oleuropein, a substance that may help in reducing cholesterol levels and inflammation. Additionally, olive leaf extracts (OLE) have been shown to lower glucose levels in the bloodstream. Laboratory studies have indicated that OLE can eliminate several microorganisms, including bacteria, yeasts, and fungi. 

To make a healthy cup of tea, simmer 4 to 6 leaves for 8 minutes. Feel free to combine with other herbs and sweeten with honey if you like.

Not to be consumed if you are diabatic or suffer from low blood pressure.