Common Autumn Illnesses and How to Strengthen Your Immunity — Expert Tips by Dr. Cynthia Al-Hajj

With the arrival of autumn and its sudden weather changes — from warm days to cool nights — many people become more prone to viral and bacterial infections. This is due to the body’s weakened immune response as it adjusts to seasonal fluctuations.
Nutrition and food science expert Dr. Cynthia Al-Hajj shares the most common fall illnesses and offers practical tips to strengthen your immune system naturally.

Most Common Autumn Illnesses

  • Common Cold: The most widespread illness caused by viruses. Symptoms include a runny or stuffy nose, sneezing, mild cough, headache, and sometimes a low-grade fever.

  • Seasonal Influenza: More severe than a cold, with symptoms such as high fever, muscle aches, fatigue, sore throat, and dry cough.

  • Seasonal Allergies: Often triggered by pollen or mold from fallen leaves, causing sneezing, nasal itching, watery eyes, and congestion.

  • Asthma Flare-ups: Cooler weather and airborne irritants like dust or mold can trigger attacks.

  • Sore Throat: Usually viral, but can be bacterial (such as strep throat), especially with cold weather.

  • Sinus Infections: Result from viral or bacterial infections or allergy aggravation, leading to headaches and facial pressure.

  • Middle Ear Infections: Common among children, often following a cold.

  • Bronchitis: Often starts as a simple cold but can develop into chest congestion and bronchial inflammation.

How to Avoid Seasonal Viruses

  • Wash your hands frequently.

  • Avoid close contact with sick individuals.

  • Dress appropriately for temperature changes.

  • Strengthen your immunity through balanced nutrition and sufficient sleep.

  • Get your annual flu vaccine.

  • Keep your home well-ventilated to prevent mold growth.

🌿 Doctor’s Advice: Boosting Immunity in Autumn

1. Manage Stress and Stay Calm

Emotional tension, anxiety, and fatigue weaken the immune system. Relaxation techniques and emotional balance are key to maintaining strong immunity.

2. Avoid Unnecessary Medication

Overuse of antibiotics can harm gut flora and weaken immune defenses.

3. Exercise Regularly

Physical activity improves circulation, strengthens the immune system, and helps prevent osteoporosis, heart disease, and even cancer.

4. Get Enough Sleep

Aim for 7–9 hours of sleep per night to support cortisol balance, which helps fight inflammation and strengthens immunity.

5. Maintain Good Hygiene

Wash your hands thoroughly for at least one minute — especially before eating — to prevent germs from entering the body.

6. Adapt to the Weather

Dress suitably, rest well, and get used to autumn’s cooler temperatures gradually.

7. Eat Seasonally and Nutritiously

Include fruits and vegetables rich in vitamins A, C, and E, and zinc such as carrots, pumpkin, cabbage, and radish.
Don’t forget garlic (rich in allicin) and turmeric for their immune-boosting and anti-inflammatory properties.

8. Stay Hydrated

Drink plenty of water and warm beverages like ginger tea to stay hydrated and ease allergy symptoms. Limit caffeine, especially on an empty stomach.

9. Enjoy Sunlight and Outdoor Activity

Take a 30-minute walk daily and get some sunlight to boost your body’s natural production of vitamin D.

10. Keep Your Environment and Hands Clean

Avoid touching your face unnecessarily and clean your eyes with warm compresses after being outdoors.

11. Avoid Crowded and Poorly Ventilated Areas

Wear a mask when needed, maintain social distance, and use sanitizing wipes. Stay home when you’re sick to prevent spreading infection.

🦠 Gut Health and Immunity: The Role of Probiotics

Did you know that about 70% of immune cells live in your gut?
Supporting your gut flora is one of the best ways to boost immunity.

How to include probiotics:

  • Eat fermented foods such as yogurt, kefir, kombucha, sauerkraut, pickles, and sourdough bread.

  • Consider probiotic supplements — but always consult your doctor for the correct dosage.

🚫 Avoid Processed Foods

Processed foods, excess sugar, and trans fats promote inflammation. Instead, aim for 5–7 servings of fruits and vegetables daily to get enough antioxidants and immune-supporting nutrients.

💊 Key Vitamins and Minerals for Strong Immunity

  • Vitamin A: Regulates immune function and protects mucous membranes. Found in sweet potatoes, carrots, spinach, apricots, and eggs.

  • Vitamin C: Enhances antibody production and infection resistance. Found in citrus fruits, kiwi, strawberries, and broccoli. Avoid overcooking vegetables to preserve this vitamin.

  • Vitamin E: A powerful antioxidant found in almonds, flaxseeds, and peanut butter.

  • Zinc: Strengthens immune cells. Found in lean meats, dairy, whole grains, and seeds.


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