But which scents are actually effective? Titled "Cognitive activation and emotional regulation effects of olfactory intervention in the context of advanced driver assistance systems," the study explains that peppermint produced the largest reduction in reaction time, and made drivers more alert. Bergamot was also effective in soothing stressed-out drivers in complex metropolitan traffic situations.
— Read more in The Scent of Peppermint Could Make You a Better Driver, Report Says at Road & Track.
