Quick Hits
Daily brief research updates from the cognitive sciences
I just couldn’t resist reviewing this piece of research, from a few years ago, after I stumbled across this (likely because some background algorithm had recommended it to me based on my other Quick Hit yesterday on caffeine). And no, I do not have any financial interests in the coffee industry.
So how on earth and in what way can coffee make teams in business more effective?
The researchers at Ohio State University conducted two experiments in the guise of a coffee tasting experiment complemented with a discussion with undergraduates. The caffeinated coffee was given before or after a discussion task that had been assigned, or supplemented with decaffeinated coffee.
What happened?
In the first experiment they found that those who had had caffeinated coffee rated themselves and others in their discussion group more positively. This points to higher team cohesion and satisfaction with the team and, at least, subjective better “performance”. This seemed to be due to alertness because their self-ratings on alertness were higher than those who didn’t drink coffee in advance.
Of more interest is that an analysis of the group discussion showed that those who had drunk caffeinated coffee talked more, which may be good or bad, but they also stayed on topic more, which is definitely good.
This therefore suggest that caffeinated coffee
- Increases team positivity
- Increases team performance ratings
- Increase communication
- And increases time on task
All too good to be true?
Well, it would need to be followed up. Maybe time of day would make a difference, or the same effect could be achieved with other stimulants. However, as the research has shifted over the years to seeing the benefits of coffee, maybe a good cup of coffee would be more than beneficial for your next team meeting.
Investing in a quality coffee machine also●

Andy Habermacher
Andy is author of leading brains Review, Neuroleadership, and multiple other books. He has been intensively involved in writing and research into neuroleadership and is considered one of Europe’s leading experts. He is also a well-known public speaker speaking on the brain and human behaviour.
Andy is also a masters athlete (middle distance running) and competes regularly at international competitions (and holds a few national records in his age category).
Reference
Vasu Unnava, Amit Surendra Singh, H. Rao Unnava.
Coffee with co-workers: role of caffeine on evaluations of the self and others in group settings.
Journal of Psychopharmacology, 2018; 026988111876066
DOI: 10.1177/0269881118760665
More Quick Hits
COVID on the Brain
Many COVID-19 patients have reported various neurological symptoms – the well-known brain fog, but also headaches and decreased cognitive function over months and extended periods of time. This even without serious infection or hospitalization. The research seems to...
Life satisfaction after work related to personality traits
As many of you know I have done plenty of work into personality and so found this study interesting. Dusanee Kesavayuth of Kasetsart University in Bangkok, Thailand analysed data from 2,000 adults aged between 50 and 75 in the British Household Panel Survey and found...
Unique regulation of brain in yoga practitioners
Quick HitsDaily brief research updates from the cognitive sciences es, you yoga practitioners knew you were special and here is the science to prove it! In this older study I came across (2018) participants were recruited to see how they dealt with...
Neurodivergence and the lonely brain
Quick HitsDaily brief research updates from the cognitive sciences eurodivergence is term that describes those that are not “neurotypical” such as those with autism and ADHD. In the surge of research into loneliness spurred by the pandemic it has...
Art Engages the Social brain
Quick HitsDaily brief research updates from the cognitive sciences reported in last week’s Quick Hits on how engaging in the arts has a relationship with self-control and avoidance of disagreeable and criminal behaviour and that is why this...
Swearing can increase strength, self-confidence, and risky behaviour
Quick HitsDaily brief research updates from the cognitive sciences wearing is frowned upon in many circumstances but is also used by many people in casual situations and particularly by comedians. So why do we swear if it is taboo? A team of...