How to prepare for the autumn-winter cold season? A simple formula for a stronger immune system
Autumn and winter are times when colds seem to chase one another, and it feels like a runny nose or cough affects almost everyone. Yes, the cold season becomes a real challenge for our bodies: less sun, more time spent indoors, temperature fluctuations – all of this weakens our natural defense against viruses. Many only think about it when they get sick, but it's much more beneficial to prepare for the cold season in advance. That's when strengthening immunity begins. Simple daily habits can become the most powerful prevention, helping to avoid illness or recover faster if illness does strike.
Why do autumn and winter become a challenge for the immune system?
As soon as the weather gets colder, we start spending more time indoors. We often go from warm rooms to the cold outdoors, then return inside, and on top of that, there's the fatigue and sadness that comes with autumn... During the cold season, we also get less sun, and thus less vitamin D. All of this significantly contributes to more frequent illnesses. Why does this happen?
Less sun and vitamin D deficiency. The decreasing amount of sunlight leads to vitamin D deficiency. This vitamin helps regulate hormone activity and supports cell proliferation. It is one of the most important for our immune system, as its deficiency makes the body more susceptible to autoimmune and infectious diseases. Studies show that supplemental vitamin D can alleviate the course of diseases, but precise recommended dosages have not yet been determined, as each person's immunity is unique and vitamin needs may vary. It is first recommended to perform a blood test for vitamin D to determine if there is a possible deficiency.
More frequent time indoors. During the cold season, we naturally spend more time indoors – in schools, offices, shops, and entertainment areas. This creates favorable conditions for viruses to spread, as air circulation is limited in enclosed spaces, the air itself is drier, and people sit or simply are close to each other. Viral infections, such as influenza or rhinoviruses, spread very easily in enclosed spaces (especially poorly ventilated ones). Also, dry indoor air can damage the mucous membranes of the nose and throat, making it even easier for infections to enter the body.
Sudden temperature changes – from a warm room to the cold outdoors. This is another challenge for the immune system. In cold weather, almost everyone finds themselves in situations where they quickly go from heated rooms to chilly air, and then return indoors. Sudden temperature changes weaken the protective function of mucous membranes, making it easier for viruses to enter the respiratory tract.
Seasonal mood changes. Short days and limited natural daylight lead to changes in serotonin and melatonin levels in the body. This can disrupt circadian rhythms, cause mood swings and fatigue, and eventually weaken the body's ability to effectively fight diseases.
For all these reasons, our body definitely needs extra help in autumn and winter. To avoid recurring colds, attention to one's body, emotional health, natural immune boosting and targeted supplements for immunity should become part of daily life.
Nutrition adapted for the cold season
During the cold season, the selection of fresh berries, fruits, and vegetables significantly narrows, but the good news is that seasonal nutrition helps compensate for these shortcomings and improves the body's natural resistance. What is useful to eat?
Seasonal products - a vitamin warehouse. Autumn and winter are naturally abundant in apples, pears, cabbage, pumpkins, carrots, beets, and other root vegetables. These products are rich in vitamin C, fiber, beta-carotene, and antioxidants, which help the immune system fight free radicals and infections. Beta-carotene, for example, converts into vitamin A in the body, which is especially important for mucous membrane health, as mucous membranes act as the first protective barrier against viruses and bacteria.
Citrus fruits – friends of immunity. During the cold season, it is beneficial to eat oranges, tangerines, grapefruits, and lemons. These fruits are rich in vitamin C, flavonoids, and other antioxidants. Vitamin C helps maintain the function of white blood cells, and flavonoids can reduce inflammation and improve blood vessel health, thus better protecting the body from viruses and bacteria.
Fermented products and probiotics – excellent for gut health. The gut microbiota makes up a large part of our immune system – when it is balanced, the body recognizes and neutralizes pathogens more quickly. Probiotics are essential for good gut health. They also help reduce antibiotic-induced microflora imbalance if we get sick and need to take them. Sauerkraut, pickles, beets – natural sources of probiotics.
Canned vegetables – a source of vitamins and micronutrients. When fresh vegetables are scarcer in the cold season, canned ones, especially homemade, can be eaten. Pickled cucumbers, tomatoes, or beans retain a good amount of vitamins, minerals, and fiber. Canned vegetables strengthen the gut microbiota, help maintain the immune system, and ensure that the body receives essential nutrients even when the selection of fresh produce is limited.
Honey and natural spices – immunity helpers. Ginger, turmeric, garlic, and other natural spices have antibacterial and anti-inflammatory properties that help protect the body from infections. Honey with lemon is a classic combination that soothes the throat and additionally provides the body with vitamin C.
Liquids, warm drinks, and soups – allies of health. Broths, soups, and stews not only provide satiety but also hydrate the mucous membranes, helping to keep them healthy and effectively fighting infections. In winter, we usually drink less water, but it is important to know that fluids are essential for toxin removal and lymphatic circulation. Let's not forget warm herbal teas, for example, with thyme, sage, or raspberries – they provide the body with biologically active compounds that strengthen the immune system.
Vitamins for boosting immunity – what to choose for the cold season?
As the cold season approaches, our body greatly appreciates additional help from food and vitamins. Although a variety of foods provides many necessary substances, sometimes this alone is not enough, and then properly chosen vitamins for immunity can come to the rescue. The most important thing is to know which ones have the greatest effect on the immune system.
Omega-3 fatty acids (ALA, EPA, DHA, DPA). Help regulate inflammatory processes and support the immune system. Extremely important at all times of the year, especially during the cold season. The optimal amount for adults is 250-500 mg of EPA and DHA per day. For children, proportionally less, for example, 100 mg per day is enough for 1-3 year olds, and 250 mg for older children aged 7-12. Seniors benefit from taking 1-2 grams per day, as they have a higher risk of cardiovascular diseases. Food sources: fatty fish, seafood, seeds, nuts, vegetable oils.
Vitamin C. Strengthens the immune system, helps the body fight free radicals and infections. Studies show that this vitamin can be very beneficial for individuals who get too little of it from their diet or experience high physical exertion. It is recommended to take vitamin C regularly, not just when ill. Food sources: citrus fruits, bell peppers, broccoli, spinach, tomatoes.
Vitamin D. Essential in winter when there is hardly any sun. Vitamin D supports the function of immune cells and helps the body effectively fight infections. Food sources: fatty fish, eggs, shrimp, fortified products.
Zinc and selenium. Often overlooked, but very important micronutrients for the immune system. Zinc strengthens the function of immune cells and helps the body fight viruses and bacteria. Selenium acts as an antioxidant – protecting cells from damage and supporting the immune system's resistance to infections. Food sources of zinc include meat, legumes, eggs, seeds, and selenium sources include nuts, fish, grains, and mushrooms.
Immunity supplements: when are they needed?
During the cold season, many start thinking about various vitamins, but it is important to understand that immunity supplements are not magic pills. Of course, they can help, but only as an additional measure, not the sole protection against all diseases. Immunity supplements are especially beneficial for the following groups of people: children, seniors, and individuals who work a lot or are constantly ill.
The most popular supplements for strengthening immunity are fish oil and other Omega-3 fatty acids, probiotics, and multivitamins. They can help supplement the diet when naturally obtained vitamins and micronutrients are insufficient, but before starting to take them, it is advisable to perform blood tests and find out exactly what your body is lacking. It is also worth knowing that in most multivitamin formulations, the amount of all vitamins is small, so if there is a large deficiency of a certain element, they may be ineffective.
Quality is paramount, not quantity, and more definitely does not mean better. The body does not absorb excessive amounts of vitamins at once, and overdosing on some micronutrients can even be harmful. Only properly chosen supplements and vitamins for strengthening immunity, balanced consumption, and monitoring your body – are the key to good health during the cold season.
Boosting immunity in winter – lifestyle habits that help prevent illnesses
Sleep quality and duration. First of all, great attention should be paid to sleep quality and duration. For adults, and especially for children and teenagers, this is the main "charger" for the immune system. Studies have shown that children should sleep 9-12 hours, and teenagers – 8-10 hours per night. Adults are recommended to sleep at least 7 hours per night. Individuals who sleep too little are more prone to catching colds.
Walks in the cold. Despite the desire to curl up under a blanket and sip tea during the cold season, regular movement should not be neglected. It is most beneficial to do this in nature – at least half an hour of outdoor activity daily helps improve circulation, supply the body with oxygen, and activate vital bodily functions. Fresh air should not be forgotten not only in autumn but also in winter. Even short walks in the forest or park will provide immeasurable benefits.
Hardening, contrast shower. Short-term cold exposure can be beneficial for the immune system, so it is recommended to take a contrast shower every morning, which not only tones but also helps improve blood circulation and metabolism. This way, the body will be better able to adapt to temperature changes. Moreover, scientific research shows that contrast procedures can reduce inflammatory processes in the body and help regulate stress, which often weakens immunity.
Indoor air quality – humidification, ventilation. In winter, heating makes indoor air dry, which directly affects the mucous membranes of the respiratory tract. When they dry out, viruses can enter the body much more easily. Air humidifiers or a simple damp towel on the radiator help maintain the health of the mucous membranes. Let's not forget the importance of ventilation – regularly opened windows not only help get rid of viruses, bacteria, and dust but also improve oxygen concentration.
Stress reduction. By dedicating more time to rest and tranquility, and less to screens, we help the body recover, reduce tension, and strengthen immunity. When the body relaxes and rests, it can more effectively fight infections and free radicals, because the body responds better to stress and pathogens.
More natural environment and less sterility. Allow children and yourself to spend more time outdoors, interact with nature, touch soil, plants, enjoy even those rare sun rays. All this naturally supports the body's defense functions and additionally strengthens immunity in winter.
Strong immunity is not just about special immunity supplements, but also about a daily lifestyle. A balanced diet, exercise, attention to psychological health, and quality sleep can eventually reward you with excellent health. Take care of yourself today so that illnesses become only a brief exception in winter, not a daily routine, and remember that boosting immunity starts with the smallest steps – you just need to start today.
