Did You Know? Our Blood Type is Not Equally Delicious for Mosquitoes
Have you ever wondered why, when standing next to a friend, only you seem to be under attack by mosquitoes? You get bitten and itchy all over, while your friend remains unbothered. What could be the reason?
Tonkkit360 has the answer! It turns out that mosquitoes don’t just bite anyone; they actually choose who to bite, and importantly, it relates to our blood type!
Blood Types that Mosquitoes Prefer
Since we experience different levels of mosquito attacks, it indicates that our bodies must have some special factors that attract mosquitoes more than others. One of these factors is that mosquitoes choose to bite people based on their blood type.
Scientists have been investigating this since 1972, when a study by the National Institutes of Health (NIH) was published in the Journal of Medical Entomology. This research delved into mosquitoes' preferences, trying to explain why some people are particularly sensitive to mosquito bites (or bites from other insects).
The study focused on Aedes mosquitoes and sought to determine which blood type attracted them the most. The findings revealed that people with blood type O attract mosquitoes more than any other group, while those with blood type A are the next most likely targets.
The researchers explained that blood type O is "sweeter" than other blood types, as individuals with this blood type attract certain insects (in this case, mosquitoes) significantly more than those with blood type A.
Dr. Baumann-Blackmore explains that the reason people with blood type O are bitten more often than those with other blood types in the same environment is due to the natural human tendency to release certain substances through the skin during daily activities. Whatever these substances are, they originate from each person's DNA, which also determines their blood type.
Which Other Groups Do Mosquitoes Prefer?
It’s not just blood that attracts mosquitoes; “sweat” can also lure them in.
Dr. Baumann-Blackmore explains that not only blood type attracts mosquitoes, but “sweat” does too. Sweat is a substance produced by our bodies and released in response to stimuli such as exercise, heat, energy metabolism, or fear.
So, when we sweat—whether from exercise or energy metabolism—the sweat contains the scent of lactic acid, uric acid, ammonia, and other substances. Mosquitoes can detect these scents and will fly towards them.
This aligns with research by Dr. Jonathan Day, a medical entomologist and mosquito expert at the University of Florida, who noted that chemicals released by the body, such as lactic acid, significantly attract mosquitoes.
Other studies have found that the type and amount of bacteria living on human skin can also attract mosquitoes. For instance, a 2011 study found that when a person's body is teeming with bacteria, they are more likely to attract mosquitoes than others. This explains why we tend to get bitten more when we haven't showered compared to when we have, in the same environment. Mosquitoes are also more likely to bite areas like the ankles or feet, where bacteria tend to accumulate when we haven't bathed.
Mosquitoes are drawn to the scent of “carbon dioxide” released from our breath. They use specialized receptors in their mouthparts to detect carbon dioxide from as far as 164 feet away. Evidence shows that adults exhaling more forcefully than children (relative to body size) attract more mosquitoes.
Additionally, people with higher body temperatures are also more appealing to mosquitoes. Yes, mosquitoes prefer warmth because they thrive better in higher temperatures than in cooler ones. If you don’t believe it, just observe that during summer, mosquitoes are more prevalent, leading to more mosquito-related issues than in winter.
Another group that attracts mosquitoes is people who “drink beer.” Studies have shown that even a single 12-ounce beer can increase your attractiveness to mosquitoes due to the ethanol released through sweat, which raises body temperature.
“Pregnant women” are also not safe from mosquitoes. Multiple studies have found that pregnant women attract mosquitoes about twice as much as others, likely due to the increased carbon dioxide output (about 21 percent more) and an average body temperature that is approximately 1.26 degrees Fahrenheit higher than non-pregnant individuals.
Many may already know that people wearing dark clothing are more likely to be bitten than those in light clothing. This is because mosquitoes use sight (along with smell) to find food. Therefore, wearing dark colors (like navy blue, black, or red) makes it easier for mosquitoes to locate you, as noted by James Day, a medical entomologist at the University of Florida.
In summary, genetic factors play a significant role in attracting mosquitoes based on what our bodies release, whether it be blood or sweat, accounting for about 85 percent of the attraction. However, there is currently no method to prevent this, as science has not advanced enough to find ways to alter human genes!
Information from LiveWell, Smithsonian, Terminix
SOURCE: tonkit360