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How Kindness Boosts Your Immune System, The Power of Visualisation & The Importance of Empathy with Dr David Hamilton #602

Dec 10, 2025 1h 46m 20 insights
This is the time of year that reminds us to be grateful, kind and spend time with the people we love. To celebrate, I have decided to re-release a conversation that took place on this podcast almost 6 years ago now with the wonderful David Hamilton. David is a scientist, researcher and one of the world's leading experts in the science of kindness. He is also the author of multiple bestselling books including Why Kindness Is Good For You and How Your Mind Can Heal Your Body. This conversation was actually recorded all the way back in February 2020, one month before the start of COVID. But, as with most of the conversations on my podcast, the content within it is timeless and just as relevant today as it was when we actually recorded it. In our conversation, we explore many different themes including: How empathy and kindness can impact various markers of our health, including the functioning of our immune systems and our cardiovascular health Why David calls oxytocin the ‘kindness hormone’ How exactly we can use visualisation to improve the quality of our lives, The science of the placebo effect The importance of connection and empathy in healthcare And the phenomenal ripple effect of kindness, whereby one act of kindness can lead to one hundred and twenty-five more. David is such a wonderful human being who is doing his very best to help create a kinder and more compassionate world. I think this conversation is perfect for the current time of year and I hope that it serves as a gentle reminder that being kind is not only good for the world around us, it’s good for ourselves as well…….   Support the podcast and enjoy Ad-Free episodes. Try FREE for 7 days on Apple Podcasts https://apple.co/feelbetterlivemore. For other podcast platforms go to https://fblm.supercast.com.   Thanks to our
Actionable Insights

1. Prioritize Empathy in Healthcare

Healthcare professionals should prioritize connecting and communicating with patients empathetically, as studies show that patients who rated their doctors highly for empathy had a 50% higher immune response and recovered 50% faster from conditions like the cold or flu.

2. Connect Before Educating

When communicating, especially in a professional or healthcare setting, establish a deep connection first so the other person feels heard and is more receptive to your message, rather than just delivering information directly.

3. Cultivate Kindness to Counter Stress

Recognize that kindness, through feelings of warmth and connection, produces oxytocin, which is physiologically the opposite of stress hormones and acts as a cardio-protective hormone, reducing blood pressure and protecting the cardiovascular system.

4. Practice Loving Kindness Meditation

Engage in loving kindness meditation, repeating phrases like ‘May you be happy, may you be well, may you be safe, may you be at peace,’ as this practice generates a system-wide anti-inflammatory effect and can lead to no measurable loss of telomere length, indicating slower biological aging.

5. Undertake a 7-Day Kindness Challenge

Commit to a 7-day kindness challenge by performing a different act of kindness each day, pushing yourself out of your comfort zone at least once, and ensuring one act is completely anonymous to foster genuine compassion and personal growth.

6. Be the Change You Want to See

To positively impact society and address feelings of powerlessness, be kind to someone each day, understanding that each act of kindness can create a ripple effect, benefiting approximately 125 people at three social steps.

7. Play a Family Gratitude Game

Implement a daily gratitude game at dinner, asking questions like ‘What have I done today to make somebody else happy?’, ‘What has somebody else done to make me happy?’, and ‘What have I learned today?’ to foster family connection and positive reflection.

8. Notice Feelings from Kindness

After performing an act of kindness, intentionally reflect on how it made you feel, as this helps to ’lock in’ the positive emotion and reinforces the behavior, conditioning you to become a kinder person.

9. Seek Warm Touch & Connection

Engage in warm, gentle touch (like stroking someone on the forearm or upper back) or foster warm connections, as this increases oxytocin levels, lowers blood pressure and heart rate, and boosts natural killer cells, improving immune function.

10. Bond with Pets for Heart Health

If you’ve had a heart attack, consider having a dog, as the oxytocin generated through bonding can reduce the chances of a second heart attack within 12 months by 400%, beyond just the benefits of exercise.

11. Watch Acts of Kindness

To boost your immune system (specifically SIGA levels, an immune antibody in saliva), watch videos or observe others demonstrating care and compassion, as this can generate feelings of connection and upliftment, similar to the ‘Mother Teresa effect’.

12. Practice Thinking Kind Thoughts

Develop a habit of pausing before speaking negatively about others and instead, practice thinking empathetically, wondering if they might be struggling, to cultivate a more compassionate mindset and feel kinder towards them.

13. Use Expressive Writing to Vent

To process anger, trauma, or hurt, practice expressive writing for 15-20 minutes a day for four consecutive days, detailing what happened, how you felt, and its impact, which can boost immune response and reduce the need for medical visits.

14. Draft Angry Emails, Don’t Send

When feeling angry or frustrated with someone, write out an email expressing your feelings but do not send it, as the act of processing and externalizing the emotion can be incredibly beneficial for managing anger.

15. Move Slowly to Reduce Stress

To reduce momentary stress, get up and move your body at an artificially slow pace, as your brain interprets this physical expression as a sign of relaxation, helping to change how you feel in the moment.

16. Visualize for Skill & Performance

To improve skills or performance (e.g., tennis, public speaking), visualize the physical movements of your body as if you are actually doing them, as the brain wires these repetitive movements, making it easier to perform in reality.

17. Watch Experts for Better Visualization

If you lack a clear mental representation for visualization (e.g., a complex sports move), repeatedly watch someone else performing the action (action observation) to condition your brain circuits and improve visualization clarity.

18. Add Visualization to Physiotherapy

For stroke recovery, supplement physiotherapy sessions with 30 minutes of daily visualization where you repetitively imagine familiar movements (e.g., reaching for a glass of water), as this leads to faster and more significant recovery.

19. Visualize Eating to Suppress Appetite

To suppress appetite or manage food cravings, vividly imagine eating the desired food, as this can activate the ‘I’m full’ part of the brain and potentially lead to eating less.

20. Implement the Feel Better Plan

Adopt a daily well-being routine of spending five minutes on your mind, five minutes on your body, and five minutes on your heart, as this simple, free plan is considered a perfect well-being strategy for anyone, including children.