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How to Keep Your Immune System Healthy with Dr Jenna Macciochi

by Dr. Rangan Chatterjee   /  September 30, 2020

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 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.

Disclaimer: The content in the podcast and on this webpage is not intended to constitute or be a substitute for professional medical advice, diagnosis, or treatment.*

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Watch the video version of this interview – click below.

'It’s more important to know what person the disease has than what disease the person has' Click To Tweet

Connect with Jenna:

Website     Instagram     Twitter 

Jenna’s book:

Immunity: The Science of Staying Well

Further Learning:

Jenna’s research papers

Interesting Articles:

Related Feel Better Live More podcasts:

Dr Chatterjee’s resources:


*DISCLAIMER: Always seek the advice of your doctor or other qualified health care provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have heard on the podcast or on my website.

†Disclosure: All books marked with a † are hyperlinked to an affiliate program. We take part in Amazon’s affiliate advertising program designed to provide a way for us to earn fees by linking to Amazon’s website. You are not charged any extra by using these links to purchase books.

Dr. Rangan Chatterjee MbChB, BSc (Hons), MRCP, MRCGP