Mars and Saturn in the Apothecary: Nettle, Comfrey, and the Virtue of Resistance

Grab a nettle stem bare-handed. Go ahead. If you’ve ever done it by accident—reaching into a hedge, brushing past a riverbank stand in August—you already know what happens. The sting is not a warning. It is the plant’s entire argument, delivered instantly and without negotiation. Formic acid, histamine, serotonin, oxalic acid: a chemical brief in … Read more