August 20, 2025

Boosting Your Immune System for Fall: A Primary Care Guide from Downtown Medical Associates 

Fall’s cooler days, warm drinks, and layered comfort often draw us indoors. However, with it comes a less welcome seasonal shift: the arrival of cold and flu season. At Downtown Medical Associates in Nashua, NH, we believe in proactive health, and that includes strengthening your immune system before symptoms strike. As part of Southern New Hampshire Health and an affiliate of Massachusetts General Hospital, we’re here to support the health of our community throughout every season. 

Why Prioritize Immune Health Now?  

Your immune system is your body's defense force, constantly working to protect you from illness. While no magic pill can guarantee immunity, there are many practical, evidence-based steps you can take to strengthen your defenses. As a primary care provider, I'm here to guide you through boosting your immune health naturally, so you can enjoy a vibrant fall and winter.  

Getting a head start on immune support in August or early September is key. It allows your body time to build up its resilience before cold and flu viruses become more widespread. Think of it as pre-season training for your immune system! 

Top Strategies for a Stronger Immune System This Fall

Here are my six simple tips for building a strong immune system: 

  1. Fuel Your Body with Nutrient-Rich Foods: What you eat significantly impacts your immune health. Focus on a colorful array of whole foods: 

  • Fruits & Vegetables: Rich in vitamins (especially Vitamin C from citrus, bell peppers, berries), minerals, and antioxidants. Aim for at least 5-7 servings daily. 
  • Lean Proteins: Essential for building and repairing immune cells. Think chicken, fish, beans, lentils, and nuts. 
  • Whole Grains: Provide sustained energy and fiber, supporting overall gut health, which is closely linked to immunity. 
  • Healthy Fats: Found in avocados, nuts, seeds, and olive oil, these are crucial for reducing inflammation and nutrient absorption. 
  • Probiotic-Rich Foods: Yogurt, kefir, sauerkraut, and kimchi introduce beneficial bacteria to your gut, supporting a healthy microbiome that plays a vital role in immunity. 
  1. Prioritize Quality Sleep: Sleep isn't a luxury. It's a necessity for a healthy immune system. During sleep, your body produces protective proteins called cytokines, which are essential for fighting infection and inflammation. Aim for 7-9 hours of quality sleep per night. 

  • Tip: Establish a consistent sleep schedule, even on weekends. Create a relaxing bedtime routine and ensure your bedroom is dark, quiet, and cool. 
  1. Stay Hydrated: Water helps carry nutrients to your cells and flushes out toxins, both vital processes for immune function. Drink plenty of water throughout the day, often more than you think you need! Herbal teas can also contribute to your daily fluid intake. 

  1. Embrace Regular Physical Activity: Moderate, regular exercise can improve your immune system's ability to fight off infections. It increases circulation, allowing immune cells to move more efficiently through your body. 

  • Aim for: At least 30 minutes of moderate intensity exercise most days of the week. This could be brisk walking, cycling, swimming, or even active yard work. 
  • Caution: Overtraining can sometimes suppress immunity, so listen to your body and get adequate rest. 
  1. Manage Stress: Chronic stress can suppress your immune system, making you more susceptible to illness. Finding healthy ways to manage stress is crucial. 

  • Try: Meditation, yoga, deep breathing exercises, spending time in nature, hobbies, or connecting with loved ones. If stress feels overwhelming, talk to your primary care provider. 
  1. Don't Forget Hand Hygiene: This simple act remains one of the most effective ways to prevent the spread of germs. Wash your hands frequently with soap and water for at least 20 seconds, especially after coughing, sneezing, using the restroom, and before eating. 

Choose Your PCP

Consider These Immune-Boosting Nutrients & Supplements (Talk to Your Provider First!) 

Fall vitaminsWhile a balanced diet is your first defense, certain vitamins and minerals are particularly important for immune function. If your dietary intake is not sufficient, or if you have specific needs, your provider might recommend supplements. Always discuss supplements with a healthcare professional before starting them. 

  • Vitamin C: A powerful antioxidant that supports various cellular functions of the immune system. 
  • Vitamin D: Crucial for immune regulation and often deficient, especially as sunlight exposure decreases in fall and winter. 
  • Zinc: Essential for immune cell development and function. 
  • Elderberry: Some studies suggest it may help reduce the severity and duration of cold and flu symptoms. 

The Flu Shot: Your Best Defense Against the Flu 

While natural immunity is important, it's vital to remember that the annual flu shot is still your most powerful tool in preventing influenza and its complications. Flu season typically ramps up in the fall, so getting vaccinated in September or October is ideal. We'll be offering flu shots here at Downtown Medical Associates soon, and I encourage all eligible patients to get theirs. 

Your Primary Care Partner in Health 

At Downtown Medical Associates, we believe in empowering you with the knowledge and tools to take charge of your health. By making these strategies part of your routine, you can significantly boost your natural immunity and prepare your body for a healthier fall and winter season. 

If you have questions about your immune health, are due for your annual wellness visit, or need your flu shot, please don't hesitate to contact us. We are here to support your journey to optimal health right here in Nashua, NH. 

Ready to strengthen your immune system this fall? 

Schedule Your Appointment with me, today!

 

Brayerlis Horne Downtown Medical Associates Brayerlis Horne is an APRN practicing at Downtown Medical Associates in Nashua, New Hampshire.  

 

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