As the leaves change and temperatures start to drop, flu season begins to make its presence known. But why is it that influenza thrives in the fall and winter months?
Several factors contribute to this seasonal rise in flu cases:
- Cooler Temperatures: Research shows that the influenza virus tends to survive and spread more easily in cooler, dry air. Cold air also dries out the mucous membranes in our nose and throat, making it easier for viruses to enter our respiratory systems.
- Indoor Gatherings: As temperatures drop, people tend to spend more time indoors. This close proximity in shared spaces—like classrooms, offices, and public transport—creates an ideal environment for the virus to spread.
- Weaker Immune Responses: Some studies suggest that colder months can lead to a slight dip in our immune system’s effectiveness, which may make us more susceptible to infections like the flu.
- Low Humidity: Indoor heating systems create low-humidity environments, which allow flu viruses to stay in the air longer and spread more easily.
As we approach flu season each fall, consider taking preventive measures like getting a flu shot, maintaining good hygiene, and staying mindful of close-contact settings. These simple steps can make a big difference in keeping flu at bay during the colder months.
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