Boost Your Brain Power: Sniffing Rosemary Can Make You Smarter

Rosemary, derived from the Latin word rosmarinus meaning “dew of the sea,” was once known as Rosmarinus officinalis.

But in 2017, it suddenly joined the Salvia genus after botanists recommended in a study that rosemary should actually be classified as a sage and therefore be renamed Salvia rosmarinus. (Say what?!)

They had sent DNA samples to the botanical world’s equivalent of AncestryDNA, and it was discovered that the plants were closely related.

This finding shook up gardeners and plant...