The Negative Effects of Climate Change on Pollen Allergies in the United States

As the sixth leading cause of chronic illness in the United States, pollen allergies are a persistent problem for at least 50 million Americans. In recent years, pollen seasons have been getting longer and more severe.

Why Are Pollen Allergies Getting Worse Every Year?

Allergy symptoms can worsen with every passing season. There are several factors that may affect the severity of your allergy symptoms:

• Age. As we age, our immune systems may weaken, leading to more severe responses as our bodies attempt to flush pollen out of our lungs and sinuses.
• Stress. Studies have attributed worsened allergies to excessive stress because stress can cause increased concentrations of histamine (the hormone that your body releases in response to allergens) in the blood.
• Poor air quality. Poor air quality can exacerbate respiratory symptoms associated with seasonal allergies such as coughing, sneezing, fatigue, runny noses, sore throats, and headaches.
• Open windows. Although it can feel refreshing in the spring and summer, leaving your windows open allows pollen to build up inside your home.
• Not taking a nighttime shower. Pollen accumulates on your skin, hair, and clothing throughout the day. Not showering and changing clothes before bed means that you are exposed to pollen all night long, leading to poor sleep quality and allergy flare-ups.

However, if you have noticed that your allergy symptoms have gotten worse and lasted longer over the years, it may be attributable to...

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