People who drink beer are more likely to attract mosquitoes than those who don’t, according to a new study by Dutch researchers. The findings suggest that lifestyle choices such as alcohol consumption can influence how often someone gets bitten.
Researchers observed that people who drink beer attract mosquitoes at a significantly higher rate, approximately 1.35 times more, compared to non-drinkers. The study, led by Felix Hol of Radboud University Nijmegen, was conducted at the 2023 Lowlands music festival in the Netherlands.
To carry out the research, Hol and his team set up a temporary lab built from connected shipping containers on the festival grounds.
They brought thousands of female Anopheles mosquitoes and enlisted roughly 500 volunteers. Each participant completed a questionnaire about hygiene, diet, and recent behavior. Then, they placed one arm into a custom-designed cage filled with mosquitoes.
Beer, behavior, and bite rates
The cage allowed the insects to detect body scent through small openings but prevented them from biting.
A camera recorded how many mosquitoes landed on the person’s arm compared to a sugar feeder placed inside the cage. Researchers later compared that footage with participants’ survey responses to identify trends.
Alongside beer consumption, two other factors appeared to increase mosquito attraction. People who had shared a bed with someone the night before were more likely to draw mosquitoes. On the other hand, recent showering and applying sunscreen seemed to reduce mosquito interest.
In a paper posted to the bioRxiv preprint server, the researchers stated mosquitoes were more drawn to people who drank beer, skipped sunscreen, and had more recent intimate contact. They noted that the insects appeared to favor individuals with more indulgent behavior.
Public health implications and prevention
While the experiment was limited to one event and a specific group of participants, the results provide new insight into why some people are more prone to mosquito bites.
Hol’s team emphasized that understanding these patterns can support broader public health efforts, particularly in preventing mosquito-borne illnesses.
Mosquitoes are not only a seasonal nuisance, but they also spread serious diseases like malaria and dengue fever. Research that uncovers how to reduce exposure can play a key role in disease prevention.
The study’s findings suggest simple steps, such as regular showering, wearing sunscreen, and moderating alcohol intake, may help individuals avoid mosquito bites, especially in high-risk areas or during peak mosquito season.
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