Justin Hachenberger
Justin Hachenberger is a researcher affiliated with the University of Warwick, known for his work in psychology and the study of caffeine's effects on mood. Recently, he contributed to a study conducted in collaboration with Bielefeld University in Germany, which examined how caffeine consumption influences the mood of young adults throughout the day, finding that coffee significantly enhances mood, especially within the first 2.5 hours after waking.
Not in the pool (under ¢1).
Recent news mentions
Bielefeld University research associate Justin Hachenberger said the links between caffeine intake and positive or negative emotions were fairly consistent across all groups.
Coffee boosts mood and happiness in morning hours, new research shows
United States· 2025-08-30
Justin Hachenberger explained that the majority of participants in the study were women, as they were mainly recruited from psychology students.
Annos kofeiinia heräämisen jälkeen piristää mieltä, tutkimus vahvistaa
Finland· 2025-08-20