Why Do I Get Sick Every Time the Weather Changes?

If it feels like you catch a cold every time the seasons shift, you’re not imagining it. Seasonal transitions can put real stress on your body — and your immune system.

When temperatures swing from cold mornings to warmer afternoons (which is common this time of year), your body is constantly adjusting. These temperature shifts can dry out your nasal passages, making it easier for viruses to enter and irritate your respiratory tract. Cold, dry air in particular reduces the protective mucus lining that helps trap germs.

Allergies also play a big role. As seasons change, pollen and other environmental allergens increase. Even if you don’t consider yourself “an allergy person,” mild inflammation in your sinuses can make you more vulnerable to infections. Allergies cause swelling and congestion, which can block proper drainage and create an environment where bacteria thrive.

Another factor is immune stress. Seasonal changes often disrupt routines — sleep patterns shift, daylight hours change, and we may spend more time indoors around others. Less sunlight can also impact vitamin D levels, which are important for immune health. When your immune system is slightly weakened, it’s easier for common viruses to take hold.

The good news? Most seasonal illnesses are mild and manageable. Staying hydrated, getting adequate sleep, managing allergies early, and washing hands frequently can help reduce your risk.

However, if symptoms linger longer than expected, worsen, or include high fever, shortness of breath, or severe pain, it’s important to get evaluated. Sometimes what feels like “just another weather change bug” may need medical attention.

Seasonal shifts are unavoidable — but feeling miserable every time they happen doesn’t have to be. In case you need us, call 731-554-0571 to schedule an appointment, walk-in, or simply use our telemed services.