The Science of Scent Odor Molecules Can Change Inside the Nose
Human olfactory mucus captured odorants and chemically converted some of them. Perceptual and cell experiments explored the implications for smell and aging.
香りと体・環境
The Science of Scent 
The Science of Scent Can a Partner’s Worn Shirt Change Your Sleep?
A study followed 155 people over four nights using a partner's shirt and a control shirt. We examine higher sleep efficiency and the role of recognizing whose scent it was in perceived sleep quality.
The Science of Scent How Do Deodorants Compare on Bacterial Counts and Odor? A PQ-16 Study
A PQ-16 formulation had lower odor scores than one commercial alcohol-based product at 24 and 48 hours, but no significant odor-score difference from an ACH formulation.
The Science of Scent Do More Odor Precursors Mean Stronger Underarm Odor? The Role of Bacteria
In a study of 24 people, measured sweat precursors did not directly track odor intensity. Detailed bacterial profiles in 11 nonusers of antiperspirants showed associations.
The Science of Scent Can Black Pepper Aroma Change the Body’s Response During Mental Arithmetic?
A study of 20 young men found smaller changes in some physiological measures during arithmetic with black pepper aroma. Results depended on the measure and comparator.
The Science of Scent Does Shaving Help Washing Reduce Underarm Odor?
In 30 men, shaving and waxing improved immediate odor reduction after soap washing. Longer-lasting benefits were less clear.
The Science of Scent Do Identical Twins Share the Raw Materials of Body Odor?
A study of 12 identical-twin pairs found similar underarm odor-precursor profiles, alongside clear day-to-day variation.
The Science of Scent Can Body-Odor Production Be Suppressed Without Killing Bacteria?
Culture experiments found that licorice root extract and EPC-K1 reduced diacetyl production through different metabolic effects, without observed bactericidal activity.
The Science of Scent Do Rose and Grapefruit Produce Different Short-Term Bodily Responses?
A study examined six essential oils using blood-pressure fluctuations and blood catecholamines. We interpret the different changes seen with rose, grapefruit, and other oils in light of the measurement conditions and comparisons.
The Science of Scent Do Different Bacteria Produce Body Odor in Children and Teenagers?
A study examined odors and microbes on the underarms, necks, and scalps of 30 children and teenagers. Genetic analysis and sweat cultures explored pathways that produce sour odors.