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21 October 2025

Strong Immune System: 7 Essential Habits for Autumn

With the arrival of autumn, the body begins to adapt to shorter days, colder temperatures, and a natural increase in the circulation of viruses and bacteria. This is the time when strengthening the immune system is no longer just a recommendation—it becomes a priority.

Preventing colds, flu, viral infections, and other common seasonal illnesses is within everyone’s reach. How? Through healthy, consistent habits that help prepare both body and mind for what’s to come.

Discover the 7 essential habits to strengthen your immunity this autumn — without complications, exaggerations, or miracle promises.

1. Sleep well: rest is your natural shield

Sleep is one of the pillars of good health. Getting 7 to 9 hours of sleep per night regulates hormone production and promotes cell regeneration — both essential for an effective immune system.

💡 Tip: Avoid screens one hour before bedtime, create a relaxing routine, and keep consistent sleep schedules.

2. Eat what the season provides

Autumn brings foods rich in vitamins, minerals, and antioxidants that help boost immunity:

• Pumpkin, carrot, sweet potato (rich in beta-carotene)

• Chestnuts, walnuts, and seeds (sources of zinc and selenium)

• Citrus fruits and kiwi (rich in vitamin C)

• Legumes and whole grains

Avoid processed foods and excess sugar, which can harm gut health — a key factor for immunity.

3. Stay active (even in the cold)

Moderate, regular exercise helps activate natural defenses, reduce stress, and improve blood circulation. Walks, stretching, yoga, or short home workouts are all effective.

You don’t need to train intensely — moving your body every day already makes a difference.

4. Stay hydrated: your body needs water, even without thirst

In autumn, the feeling of thirst decreases, but the body still needs hydration to keep cells and mucous membranes functioning properly.

💧 Tip: Drink water throughout the day and enjoy herbal teas, broths, and nutrient-rich soups.

5. Get sunlight (in moderation)

Vitamin D, essential for immunity, depends on sunlight exposure. During autumn, exposure naturally decreases — making deficiencies more common.

Try to get 15 to 30 minutes of sun per day, especially in the morning. If in doubt, get tested and supplement if necessary, with medical guidance.

6. Reduce stress with small breaks

Chronic stress weakens the immune system. Even on busy days, include short breaks and activities that help you relax:

• Deep breathing

• Walks in nature

• Meditation or mindfulness

• Light conversations and offline time

Taking care of your mental health is taking care of your immunity.

7. Update your seasonal vaccines

Autumn is the ideal time to strengthen protection with vaccines such as:

• Flu

• COVID-19 (booster)

• Pneumococcal (for risk groups)

Getting vaccinated is an act of prevention and collective responsibility, especially important for families with children or the elderly.

✅ Conclusion: prevention is better than cure

Strengthening your immune system in autumn doesn’t require big changes — just conscious, consistent choices. By adopting these 7 habits, you’ll prepare your body to face the season with more energy, fewer illnesses, and greater well-being.

💡 With the Misericórdias Saúde Card, you can book general medicine, nutrition, and nursing appointments with discounts of up to 60%, ensuring support to care for your immunity all year round.