It is always comforting to hear that a study has shown a culinary herb to be beneficial against a condition. One feels that one can hopefully avoid the cost and side effect of of pharmaceuticals. Plus it brings memories of simpler times when individuals had a better chance at health self sufficiency
So here we have a Japanese study showing that Rosemary has  anti-depressant like effects and “…exert multiple benefits for neuronal system and alleviate mood disorder…[through]…regulation of several neurotransmitters (dopamine, norepinephrine, serotonin and acetylcholine).
The Livestrong site lists other possible medicinal uses of Rosemary:
Cramps: Skin rub
Aches and pains: Topical massage with Rosemary oil
Arthtritis, as an oral supplement