You open the door to a rideshare or step into a friend’s freshly detailed car, and before the engine even turns over, it hits you. A heavy, artificial wave of “Black Ice,” synthetic vanilla, or fake pine aggressively assaults your senses. Within seconds, your mouth waters, a tension headache grips your temples, and your stomach … Continue reading The “Smell of Nausea”: Why Certain Car Air Fresheners Trigger Instant Sickness