We all know that the illness season generally begins in autumn when the weather turns colder, nights get longer, and sunlight becomes scarcer. In summer, we get sick much less frequently. Why is that?
The reason is not that viruses disappear during the summer. COVID-19 is a good example of this. The key difference is that our immune system is stronger during the summer and can handle pathogens more effectively. In other words, while viruses are just as present in summer as in winter, we simply do not fall ill as easily due to our enhanced immunity.
Two essential vitamins
During the summer, our diet includes significantly more fresh food, leading to a higher level of vitamin C in our bodies. Vitamin C is one of the most crucial vitamins for immune system function. During the illness season and after recovery, vitamin C plays a vital role in helping us regain strength more quickly.
Another essential vitamin that we get much more of in summer is vitamin D. Studies have shown that people with a vitamin D level of at least 95 nmol/L have up to three times lower risk of upper respiratory tract infections.
The third, equally important factor influencing the immune system
Not only vitamins impact our immunity and resistance to illness, but our mental state also plays a significant role. The warmth and sunlight of summer have a positive effect on our mood, making us feel happier. As a result, stress and tension decrease. The gloomy autumn weather and lack of sunlight, however, have a depressing effect. Much has been said about so-called autumn depression, which significantly weakens our immunity.
It is especially important during stressful times to ensure we get enough rest—primarily through quality sleep. When well-rested, we can handle challenging situations much better without experiencing excessive stress and exhaustion.
To prevent the autumn and winter seasons from becoming too burdensome on our bodies, it is essential to maintain summer-level vitamin intake and a positive mindset. Before turning to miracle cures for boosting your health, make sure your vitamin D and C levels remain as high as they were in summer, and always get proper rest. By following these steps, you will keep your immune system strong and significantly reduce the risk of falling ill.
