A recent study involving 305 Brazilian adults explored the connections between skin health, psychological wellbeing, and gut microbiota, reinforcing the relevance of the skin–brain axis.
The findings show that anxiety, depression, and stress are strongly interconnected, with significantly higher levels reported among women compared to men. Dermatology-related quality of life (DLQI) was also associated with psychological symptoms, although with weaker correlations.
Nearly half of participants reported a dermatological condition, and more than 50% were at risk for at least one mental health disorder, underscoring the close relationship between skin health and mental wellbeing.
The analysis further identified stress and depression as independent predictors of anxiety, explaining a substantial proportion of overall symptom variability.
Probiotic intake showed no clear association with mental health outcomes, likely due to low consumption levels in the studied population.
Overall, the authors conclude that the skin–brain axis is bidirectional and complex, highlighting the need for further longitudinal and culturally diverse studies to better understand these interactions.
Study: https://www.sciencedirect.com/science/article/pii/S2950306X26000026#ab0010
