Are you a mosquito magnet? Here’s Why

Health experts warn that this season will see an increase in mosquito activity, particularly along the coast, due to persistent high temperatures, humidity and breeding conditions. Mosquitoes don’t bite everyone the same way. Factors such as body temperature, CO2 levels and even clothing colour can have an impact. However, according to statements made to El País by allergist Isabel Fernández de Alba, of the HLA Inmaculada Hospital in Granada, body odour is a key factor.

Mosquitoes tend to be attracted by individuals who emit high levels of carboxylic or aldehyde acids. Studies have shown that identical pairs often show similar patterns in mosquito attraction.

Some bites can have a significant reaction, even though they are usually mild. Skin tightening, localised inflammation, and swelling over 10 centimetres are common. Although rare, symptoms like generalised hives or dizziness may indicate an allergy reaction. Some people have experienced more severe reactions due to the spread of invasive species, such as aggressive mosquitoes like the tiger mosquito.

Natural alternatives

The Ministry of Health in Spain recommends the use of insect repellents containing DEET, IR3535, or icaridin. Citronella oil, lemon eucalyptus or catnip oils are also effective alternatives, especially when applied regularly. At home, they advise installing mosquito screens on windows, using electric vapourisers or plug-in repellents, and eliminating standing water where mosquitoes breed—such as in plant saucers, garden pots or drains.

Wear long sleeves and pants when you are outdoors, especially in the morning and evening. The Ministry warns against using popular home remedies like vinegar or toothpaste. They are not effective and can cause irritation to the skin.

Avoid scratching

If you are bitten, use antihistamines and mild corticosteroid or antihistamine creams to soothe the itching. To prevent secondary infection, avoid scratching.

In areas where the tiger-mosquito is now established such as in parts of Valencian Community being proactive can prevent both nuisance as well as disease. Some mosquitoes are capable of carrying viruses like dengue and West Nile.

As temperatures rise, understanding who gets bitten—and why—can make summer not only more comfortable but also safer.