The spleen, a vibrant purple organ located on the left side of the body, plays a crucial role in the immune system, helping to fend off bacterial infections. Bad breath, often seen as a social issue, gained notoriety in the 1920s thanks to a clever marketing campaign that rebranded Listerine from a multi-purpose product to a remedy for "halitosis," framing it as a disease. This strategic shift not only boosted sales but also altered societal perceptions of oral hygiene.
