What Science Says Makes Your Life Happier | Susanna Halonen
Chris Williamson (host), Susanna Halonen (guest)
In this episode of Modern Wisdom, featuring Chris Williamson and Susanna Halonen, What Science Says Makes Your Life Happier | Susanna Halonen explores science-Backed Daily Habits That Meaningfully Increase Your Happiness Level Chris Williamson interviews positive psychology expert and ‘happiologist’ Susanna Halonen about what research says actually makes us happier. They distinguish between two types of happiness—short-term pleasure (hedonic) and deeper purpose (eudaimonic)—and explain that only about 10% of happiness comes from external circumstances. The conversation focuses on evidence-based practices like gratitude journaling, reflection, growth mindset, self-care, and better use of body, sleep, diet, and relationships to raise your baseline mood. Susanna also shares the structure and ideas behind her 30‑day program from her book “Happiness Is Here.”
Science-Backed Daily Habits That Meaningfully Increase Your Happiness Level
Chris Williamson interviews positive psychology expert and ‘happiologist’ Susanna Halonen about what research says actually makes us happier. They distinguish between two types of happiness—short-term pleasure (hedonic) and deeper purpose (eudaimonic)—and explain that only about 10% of happiness comes from external circumstances. The conversation focuses on evidence-based practices like gratitude journaling, reflection, growth mindset, self-care, and better use of body, sleep, diet, and relationships to raise your baseline mood. Susanna also shares the structure and ideas behind her 30‑day program from her book “Happiness Is Here.”
Key Takeaways
Most of your happiness is within your control.
Research suggests only about 10% of happiness is predicted by external conditions (job, house, partner); the remaining 90% is largely shaped by mindset, perspective, and daily choices, even accounting for some genetic influence.
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Treat happiness as a daily practice, not a destination.
Chasing milestones (house, job, relationship) leads to hedonic adaptation: you quickly return to your old mood baseline. ...
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Start with specific daily gratitude to rewire attention.
Writing down three concrete things you’re grateful for each night, for at least 21 days, trains your brain to scan your day for positives, making you more optimistic, resilient, and better at noticing what genuinely matters.
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Cultivate a growth mindset to turn setbacks into fuel.
Viewing abilities as developable (growth mindset) rather than fixed helps you see challenges as learning opportunities, take feedback constructively, and interpret failures as data—key ingredients for both confidence and happiness.
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Align your life with simple, everyday purpose—not grand missions.
Purpose doesn’t require curing cancer; it means understanding why you do what you do, from brushing your teeth to your job tasks. ...
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Your body is a powerful lever for your mood.
Basic physical inputs—sleep, diet, hydration, movement—heavily influence brain function, stress levels, and emotional regulation. ...
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Design weekly reflection rituals to integrate learning and joy.
Answering three questions each week—what you’re most proud of, what you learned, and your most beautiful moment—helps consolidate growth, savor positive experiences, and keep your actions aligned with your evolving values.
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Notable Quotes
“Happiness is not a destination, it is a daily choice.”
— Susanna Halonen
“On average, only about 10% of our happiness is predicted by external things… and 90% is entirely up to you.”
— Susanna Halonen
“Happiness, in short, equals pleasure plus purpose.”
— Susanna Halonen
“Being grateful for what you have doesn’t mean you stop growing; it means you enjoy the journey while you grow.”
— Susanna Halonen
“If you think you’re too busy to slow down or reflect, that’s probably when you need it the most.”
— Paraphrased from Susanna Halonen and Chris Williamson
Questions Answered in This Episode
How can someone who feels deeply pessimistic realistically begin a gratitude practice without it feeling fake or forced?
Chris Williamson interviews positive psychology expert and ‘happiologist’ Susanna Halonen about what research says actually makes us happier. ...
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Where is the line between healthy striving for goals and the kind of achievement-chasing that undermines happiness through hedonic adaptation?
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What are the most effective ways to shift from a fixed mindset to a growth mindset in real-time when a setback hits?
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How should people with clinical depression or severe anxiety adapt or avoid some of these happiness practices to prevent worsening their state?
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If busyness is masking a lack of purpose, what concrete steps can someone take in the next week to start disentangling their schedule from their sense of self-worth?
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Transcript Preview
(wind blowing) Hi, friends. This week we're talking about happiness. The field of psychology for a very long time was focused on making bad people okay, as opposed to okay people better, or happy people even more happy. I'm happy to sit down (laughs) , pardon the pun, with Susanna Hallinan, who is the world's first happiologist. She is a positive psychology specialist, the author of Happiness Is Here and Screw Finding Your Passion. She's a published researcher, TEDx speaker, online columnist, and a regular commentator in the media from the BBC to the Huffington Post and more, and we're gonna try and find out how to become a little bit happier in life. I was incredibly surprised at how many basic steps we can take in our day-to-day life to actually make our level of happiness, our baseline level of satisfaction improved. It, uh, it was very enlightening and, and there was a lot of new information that came out of this. Now one of the key tools that Susanna suggests that everybody should be using is a journal, and I know that I will be asked for some advice on which journal I recommend and which one I use, so the Six Minute Diary, which I've mentioned on numerous life hacks, the podcast with Warren Cass and the podcast with Ewan Lawson will be linked in the show notes below. It's my favorite way to develop a journaling habit, three minutes on a morning, three minutes in the evening with prompts for questions. Susanna gives you a lovely little, uh, program that you can follow as well on a weekly and a daily basis. You can add those in. I've chosen to, as there are sections in the diary to add weekly notes as well. If you follow the link in the show notes below, you will be supporting this channel at no extra cost to yourself, so please do so. If you want to start journaling, consider using the Six Minute Diary, as it's my favorite. Now let's chase after some happiness. (upbeat music) Susanna Hallinan, welcome to Modern Wisdom.
Yeah, thank you so much. Thank you so much for having me.
It's fantastic. How are you?
Yeah, I'm very good. I'm feeling good. The, the sun is shining. I've had a good start to the week, so yeah, it's all good. (laughs)
That's brilliant. So let's get straight into it. Can you tell me what a happiologist is, please?
Yeah. (laughs)
(laughs)
So, um, basically as my job, as the happiologist, uh, my mission in life is to make the world a happier place, and the way I do that is anything from one-to-one coaching work, to workshops, to keynote talks at organizations, and I've recently started also doing more online courses on it and some books as well, and it's basically just all about helping you to live a happier and more fulfilling life, in short. (laughs)
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