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How to Keep Your Immune System Healthy with Dr Jenna Macciochi #125

Sep 29, 2020 1h 51m 14 insights
What does immunity mean to you? In today’s Feel Better Live More podcast, researcher and lecturer, Dr Jenna Macciochi explains that it’s not just about fighting off infection. Our immune systems do not lie dormant, waiting to wage war if bacteria or viruses invade – they play a central and constant role as our bodies’ housekeepers. How do we do that? From empowering nutrition advice to insights into the how our metabolism and immune systems interact, there’s plenty of practical takeaway from this conversation. We discuss the disruptive effects of stress and how cortisol dampens immunity and even reactivates viruses. Having learned this first-hand when chronic stress led to her getting pneumonia, Jenna shares some helpful rituals for reducing the impact of stress in your life. Perhaps most fascinating though, is the idea that the type of person you are can shape your immunity. Jenna explains there are five main personality categories and each of them have specific immunological features. Traits and behaviours typical of each category, such as risk taking, sociability and how we respond to stress, can end up informing how our immune systems develop. As we discuss, ‘It’s more important to know what person the disease has than what disease the person has.’ This is a valuable conversation for anyone who wants to understand more about their immune system, not just to reduce their risk of getting an infection, but also to increase their overall wellbeing and longevity. Show notes available at: https://drchatterjee.com/125 Follow me on instagram.com/drchatterjee/ Follow me on facebook.com/DrChatterjee/ Follow me on twitter.com/drchatterjeeuk
Actionable Insights

1. Manage Stress for Immunity

Recognize that stress is biological and significantly dampens the immune system, even overriding a good diet. Prioritizing stress reduction and adequate sleep can be more beneficial than minor dietary tweaks for overall immune health.

2. Develop Personal Health Intuition

Understand that health responses are highly personal; experiment and tune into how your body feels after eating or in different situations. Use this self-knowledge to guide your lifestyle choices rather than strictly adhering to generalized advice.

3. Embrace Diverse Plant Foods

Consume a wide variety of plant-based foods, aiming for 30 different types per week, including fruits, vegetables, nuts, seeds, legumes, beans, pulses, and whole grains. This diversity provides essential fiber and phytonutrients that nourish gut bacteria and support immune function.

4. Practice Time-Restricted Eating

Aim to eat all your meals within a 12-hour window each day, allowing your body a 12-hour break from food. This practice helps reduce constant inflammation from eating and allows the gut to rest and repair.

5. Prioritize Protein for Immunity

Ensure sufficient protein intake, as protein malnutrition negatively impacts the immune system by depriving it of amino acids, which are the building blocks for antibodies and immune cells. If following a plant-based diet, combine different plant proteins to ensure complete amino acid profiles.

6. Consume Omega-3s for Resolution

Include sources of omega-3 fats, such as oily fish or supplements if fish intake is low, as they are crucial for both initiating and resolving inflammation. Omega-3s help the immune system transition from fighting infection to healing and repair.

7. Create Joyful Eating Experiences

Make meal times a joyous experience, whether alone or with others, as the endorphins released from enjoyment can positively alter immune cell function. Eating in a relaxed, happy state can lead to a different biological response than eating the same food while stressed.

8. Build Empowering Daily Routines

Create and consistently practice daily routines, especially morning rituals involving mindfulness, movement, and a positive mindset, even if only for a few minutes. These routines can condition your immune system to interpret the environment as safe and calm, providing a buffer against stress.

9. Set Boundaries, Learn to Say No

Learn to set boundaries and say ’no’ to commitments that compromise your personal time or family obligations. This practice helps prevent chronic stress and the feeling of being overwhelmed, which can negatively impact immune health.

10. Practice Forgiveness, Release Anger

Recognize that holding onto resentment and anger can negatively influence your biology and immune system. Practicing forgiveness can help reduce this chronic emotional stress, contributing to better overall health.

11. Choose Minimally Processed Foods

Focus on consuming natural, minimally processed foods for the majority of your meals. This approach supports overall health and provides the necessary nutrients without the inflammatory burden of highly processed options.

12. Avoid Mindless Eating on Go

Try to avoid eating on the go, as rushed and mindless eating can negatively impact digestion and overall well-being. Sit down to eat whenever possible to allow for proper chewing and a more relaxed state.

13. Balance Saturated Fat Intake

Be aware that saturated fats can transiently increase gut barrier permeability and inflammation, but this effect can be counterbalanced by eating them within a fiber-rich diet. The overall dietary pattern is more important than focusing on single nutrients.

14. Omega-3s for Pregnancy

Pregnant women should consider adequate omega-3 intake, potentially through fish or supplements, as it is important for preventing allergies in the unborn child, despite mixed messages about fish consumption due to mercury.