Gynostemma is also known as “southern ginseng”
Gynostemma may support the heart in other ways as well. For example, it seems to strengthen the heart helping it beat more powerfully. A Chinese study of 220 athletes found that it helped increase cardiac efficiency without a concurrent increase in the heart rate or blood pressure. Participating athletes were able to produce more blood flow and send more oxygen to their muscles, without forcing their hearts to work harder, thus boosting their endurance.
More research needed on gynostemma