There are three updates today, two of which are heart healthy herbs (via different mechanisms) and the other is an update to a currently existing and relatively major page.
Terminalia Arjuna has been added. This is an aqueous tree bark extract that appears to be cardioprotective at the level of the cardiac tissue itself. The exact bioactive is not known, but several low-powered interventions in humans with cardiac ailments have noted a variety of general cardioprotective effects. One study has been conducted in healthy persons where Arjuna increased cardiac performance during a sprint test, which suggests the benefits observed in unhealthy persons may be unilateral and extend to healthy persons.
Of note is the ability to reduce and rehabilitate cardiac lesions induced by beta-adrenergic agonists in research animals and reduce circulating catecholamines, suggesting Arjuna may be a nice compound to keep in mind after periods of stimulant use/abuse.
Arjuna still needs a large scale and higher powered study, and perhaps more in healthy humans, but currently appears to be very promising as a cardiac tissue rehabilitative agent
Hibiscus Sabdariffa is a flower calyx that has traditionally been brewed as a tea for a variety of ailments, but has more recently been used as a blood pressure reducing agent. Tea made from Rosella or supplements with a standardized anthocyanin content appear to be effective at this, reducing blood pressure in persons with hypertension and affecting both diastolic and systolic.
There is some possible toxicity associated with higher doses, and there is a fair bit of animal research suggesting it can suppress appetite that may not apply to humans (as the molecule in question has structural similarity to (-)-hydroxycitric acid, the bioactive in Garcinia Cambogia that appears to suppress appetite in rodent models but not humans).
Hibiscus Sabdariffa appears to be a bioactive tea that can reduce blood pressure and improve circulation, although it is not without side-effects and dosing is important
Ganoderma Lucidum (Reishi) has a series of non-specific updates (most related to cancer and immunology), although the most important update is most likely the flow and structure of the article. Previously, the Reishi article was fairly difficult to navigate and comprehend; this has been amended as best as possible and more articles have been added in support of Reishi.