I've got an n=65 about hibiscus and blood pressure, which has been better well known for awhile. https://www.ars.usda.gov/news-events/news/research-news/2008...

now we need a study of adding Peppermint oil into hybiscus tea.

	▲	SwellJoe an hour ago \| parent [-]
		A Mediterranean place I used to eat at weekly served a hibiscus mint (spearmint, though) tea. Pretty nice.