The thing about herbs is that there is nothing supernatural or implausible about the fact that any particular herb can have a medicinal effect. But the truth of the matter is that herbs are drugs. There's nothing magical about them. The fact that they are "natural" is irrelevant - it's meaningless. They are drugs. They are drugs that have not been purified, identified, ... and quantified. ... Probably for most plants ... there are hundreds of chemicals in there with varying degrees of potency.