Why Are There More and More Allergic People Every Year?

28 de octubre de 2025

2 min de lectura

According to data from the World Allergy Association, up to 40 % of the world’s population suffers from an allergy. Allergies can start at any age, and no one is immune to them. Let’s look at nine of the reasons for this.

Puntos clave

According to data from the World Allergy Association, up to 40 % of the world’s population suffers from an allergy.

Para quién es

Personas que exploran Alergia a través de alergia, estrés.

Por qué importa

Este artículo te ayuda a orientarte rápidamente y luego avanzar a una colección o serie si quieres seguir profundizando.

Autor del artículo

Dra. Nína

Alergóloga-Inmunóloga

Heredity. Your father and mother each have a 30-40 % risk of inheriting allergies, and if both parents have them, up to 70 %. Accordingly, the more adults that have allergies the more children inherit the disease.

The desire for sterility. In 1989, scientist David Strachan formulated the so-called "hygiene hypothesis". The hypothesis is that the less frequently people encounter bacteria in everyday life, the lower the bacterial and viral load, and the higher the risk of allergies. Statistics confirm the theory: rural residents have allergies much less frequently than city dwellers.

Cesarean section delivery. When the baby passes through the birth canal, its body is populated with bacteria and microorganisms that form a unique microbiome, and 70 % of the immune system is centered around the gut. "Caesareans" do not have this, and so there are more allergy sufferers among them.

Dietary restrictions on children. By protecting babies from possible food allergens and restricting their diet, parents do not allow the immune system to learn how to adequately respond to a possible threat. This can lead to allergies in the future.

Excessive variety. Today, we have hundreds of options for food and a vast number of medicines, dietary supplements, chemicals, and supplements. However, not all of it fits together. For example, if you are not allergic to wheat protein but once ate a bun and took some medicine, you created a combination that the body is not able to "digest" so easily, which triggered an allergic reaction.

Travel to exotic countries. Today, people travel much more often and farther than in the past. When you find yourself in a different climate, with a different environment, food, and animals, it's easy to encounter new allergens.

Stress. This is a hallmark of our times. Stress lowers the immune system, which can cause eczema, dermatitis, and asthma attacks. Studies have noted that asthmatic students have a 30 % increase in the frequency of attacks.

Deterioration of the environmental situation. Increased concentration of chemicals in the air increases the activity of natural allergens. Substances disrupt the function of the epithelial barrier of cells, which can give rise to allergies. Indoor concentrations of chemicals from heating and detergents are 2 to 5 times higher than outdoors, which also provokes allergic reactions.

Advanced diagnosis. The number of allergy sufferers is also increasing because allergies have become better diagnosed, and people have become more aware. People are better able to distinguish an ordinary runny nose from an allergic one, so they go to the doctor.

Seguir leyendo

Alergia#lactase intolerance

Lactase Deficiency or Allergy: Similar Symptoms, Different Nature

Lactase deficiency is often mistaken for an allergy to milk protein and vice versa. The confusion arises from the similarity of symptoms. But the nature of these pathologies is different: lactase deficiency is a digestive disorder, and milk allergy is an immune problem. Let's take a closer look at both of these—how they differ and what type of medical help to seek if necessary.

Dr. Angelique28 oct 2025

Alergia#alergia

What Is Pseudoallergy — And How Is It Different From Allergy?

Approximately half of the world's population live with allergies. Those who want to keep this disorder under control should know exactly if they actually have an allergy and what causes the reaction.

Dra. Madina28 oct 2025

Pediatría#children

10 Common Mistakes That Caring Parents Make

Even well-intentioned parents can be overbearing in raising and caring for their children. What are the common mistakes we make when trying to take good care of our children?

Dra. Irene28 oct 2025

Salud mental#depresión

New Study Confirms Vitamin D Does Not Reduce the Risk of Depression in Adults

Vitamin D is one of the most widely-discussed vitamins: its deficiency is blamed on everything from low immunity to mood swings, and its effectiveness is widely accepted. However, according to a number of studies, claims about the benefits of vitamin D are sometimes overstated.

Darya28 oct 2025

Instala Ornament para no solo leer estos artículos, sino también hacer seguimiento de tu salud, guardar resultados de análisis y acceder a otras funciones útiles

Instalar Ornament