# Beer and Body Odor Draw Mosquitoes. Here's What Works Against Them
Mosquitoes home in on specific people for a reason. Research shows that beer consumption and natural body odor make some individuals more attractive to the insects, while the insect repellent DEET provides reliable protection.
Studies have identified the compounds that draw mosquitoes to certain hosts. Lactic acid, ammonia, and other components in human sweat create a chemical signature that mosquitoes detect from considerable distances. Beer consumption increases these emissions, making drinkers more prone to bites. Additionally, body odor variations between individuals explain why some people get bitten far more often than others at the same gathering.
The science behind mosquito attraction comes from research on how the insects locate hosts. Female mosquitoes, the ones that bite, rely on carbon dioxide detection and thermal sensing, but they also track odor plumes. Genetic factors and diet influence the specific scent profile each person produces, which explains the common observation that mosquitoes seem to prefer certain people.
DEET, the active ingredient in most insect repellents, works by interfering with mosquito sensory receptors. When applied to skin, DEET blocks the insects' ability to detect the chemical cues that guide them to hosts. Studies confirm that DEET concentrations between 20 and 30 percent provide effective protection for several hours.
Other strategies can reduce mosquito attraction. Wearing light-colored clothing makes it harder for mosquitoes to spot you visually. Avoiding peak mosquito hours (dawn and dusk) limits exposure. Limiting alcohol consumption before spending time outdoors removes one variable that increases attractiveness to bites.
For those frequently targeted, consistent DEET application offers the most reliable defense. Reapplication every few hours maintains protection, particularly after swimming or heavy sweating