11/11/2025
A 2024 study conducted by Kokubun et al. has revealed that continuous inhalation of Rose essential oil can increase the grey matter volume (GMV) of the whole brain and posterior cingulate cortex (PCC). The study was conducted on 50 healthy women, with 28 in the intervention group and 22 in the control group. The intervention group were asked to wear diluted Rose essential oil on their clothes for one month and the control group were given plain water. MRIs were taken before and after the intervention to monitor changes. This is the first study to show that continuous scent inhalation changes brain structure and could be of value in helping prevent brain atrophy and dementia.
https://www.sciencedirect.com/science/article/pii/S0361923024000297