What Increases Your Risk of Allergies
Learn what can trigger allergies, what affects your risk, and what you can do about it.
Why Allergies Are So Common Today
Allergic conditions have increased significantly since the mid 20th century and continue to grow worldwide.
There is no single clear cause of why allergies develop. Different hypotheses have been proposed, but none of them fully explain the rise on their own. Most likely, allergies develop due to a combination of factors.
What is clear is that allergies are closely linked to modern lifestyle. Changes in environment, diet, and daily habits have all affected how the immune system responds.
At the same time, better awareness and improved diagnostics mean allergies are now identified more often than before.
What May Be Behind Allergies
There is still no single explanation for why allergies develop. Several ideas are discussed today, and most likely it’s a combination of factors.
The Hygiene Hypothesis
Modern life is much cleaner than before. Early in life, the immune system may not get enough exposure to everyday microbes, which can affect how it reacts later.
The Epithelial Barrier Hypothesis
This theory focuses on the body’s natural barriers like skin and airways. Exposure to pollution, chemicals, and everyday products may weaken these barriers, making it easier for allergens to get inside.
The Dual Allergen Exposure Hypothesis
In food allergies, how the body first encounters a food may matter. Contact through damaged skin can trigger a reaction, while eating the same food early may help the body tolerate it.
Other factors are also being studied, including gut microbiome balance, environmental diversity, and overall lifestyle changes.
How Allergies Develop
Allergy does not appear right away. It develops in stages.
First Exposure
The immune system encounters a substance such as pollen, dust, or food protein and mistakenly treats it as a threat. It produces specific antibodies that remain in the body.
At this stage, there are usually no symptoms.
Repeated Exposure
When the body meets the same substance again, the immune system reacts. Cells release histamine and other chemicals, leading to swelling, itching, mucus production, and irritation.
This is when symptoms appear.
What to Keep in Mind
In the Atlanta area, the most common triggers are pollen and mold. Food allergies are also common.
At the same time, not every reaction is a true allergy. Reactions to supplements, household products, or foods with additives and dyes are being reported more often. These symptoms can look similar but may resolve once the trigger is removed.
If your symptoms don’t follow a clear pattern, keep coming back, or are hard to explain, it’s worth getting checked. You’re welcome to walk in at Buckhead Primary Care or schedule an appointment online.