
Dr Sabina Brennan
Think faster, sharper, better with Dr Sabina Brennan neuroscientist, health psychologist, bestselling author, and award-winning science communicator. Expect powerful thought-provoking talks that blend expert insights with practical tools that motivate and ignite meaningful change in every audience. Sabina turns complex neuroscience into practical, life-changing tips for resilience, high-performance, goal attainment, brain health, and everyday wellbeing.

County Cavan, Ireland
Enquire Now
Send us your event details
Sabina has authored four Irish Times bestsellers - 100 Days to a Younger Brain, Beating Brain Fog, The Neuroscience of Manifesting, and Still Me. Her books and animated films have been translated into multiple languages.
Sabina is trusted by national and international media for her expert insights from neuroscience, entertaining explanations, and clear commentary that make sense of human behaviour with honesty, heart, and humour.
For more than 15 years she has been delivering high-quality, evidence-based sessions to companies including: Accenture, Allianz, Alltech, AIB, Autodesk, Bank of America, Bayer, Birketts, Bord Gáis Energy, Dentons, CCD, Ernst and Young, Indeed, Irish Life, KPMG, LEO, MERK, MUFG, Novartis, One4All, PA Consulting, PlayStation, Property Mark, PWN, Reach, Roche, RPC, Stagwell, Terumo, Teva, Wayfair, UKROEd.
A former director of a brain health and dementia research programme at Trinity College Dublin, Sabina has also advised government, parliamentary groups, multi-nationals, and NGOs on brain health, workplace wellness, neurodiversity, aging, and brain fog.
She is host of the Super Brain Podcast and has also been a guest on many high profile podcasts including The Blindboy Podcast, Begin Again with Davina McCall, The Doctor’s Kitchen, and Liz Earle Wellbeing.
Topics, Sessions And Talks
A science-led high-performance keynote that positions brain health as cognitive performance infrastructure – the foundations of focus, learning speed, emotional regulation and decision quality under pressure. Dr Sabina Brennan draws on the science of neuroplasticity, cognitive reserve and brain maintenance, it shows how modern work can quietly deplete cognitive capacity, then offers a clear, memorable framework (Activities, Attitude and Lifestyle) and practical tools to strengthen attention, resilience and recovery. Relevant across all ages, this talk helps teams and leaders improve clarity, reduce avoidable errors and build sustainable performance rather than short-lived intensity.
Dr Sabina Brennan delivers a high-performance session on what happens when the brain’s operating system is under strain, and how that quietly erodes attention, processing speed, memory and executive function – the cognitive foundations of good judgement and consistent delivery. It helps audiences recognise early warning signs, understand the most common drivers (sleep debt, stress load, cognitive overload, life-stage factors including menopause, nutrition, movement and health/medication contributors) and apply practical strategies to restore clarity and reduce rework and errors. Menopause is included as a common context, but the focus is intentionally broader because ‘brain fog’ is often the workplace label for overload and recovery debt.
This keynote by Dr Sabina Brennan reframes sleep and stress as performance infrastructure: the biological foundations of judgement, focus, emotional regulation and safe decision-making. Using the sleep–stress cycle and the concept of sleep reactivity, it explains why modern work patterns can lock people into a self-reinforcing loop (more stress means less sleep, which in turn means more stress), and then provides realistic, evidence-led tools to break it. Audiences leave with a practical playbook for high-demand periods – including rapid downshift techniques, sleep-supportive routines and leader actions that reduce cognitive load and protect recovery across teams.
Most change initiatives fail not because people are unwilling, but because change is neurobiologically expensive: it demands attention, effort and uncertainty management while the brain tries to conserve energy through habits and automation. In this keynote, Dr Sabina Brennan translates the neuroscience of patterns into a practical framework for organisational change: why behaviour defaults back under pressure, how to build new routines that stick and how leaders can design environments that make adoption easier. It’s a high-performance session focused on execution – reducing friction, shortening the ‘dip’ in capability during change and creating sustainable, repeatable behavioural shifts.
In this thought-provoking keynote, Dr Sabina Brennan that reframes AI as more than transformation or productivity – it’s a neuroplasticity event reshaping the human brain and, with it, organisational judgement. Using the parallel of humanity’s first fire – the environmental shift that helped unlock our capacity for learning, cooperation and long-horizon thinking – this talk explores how today’s ‘second fire’ can either strengthen decision quality or quietly erode it through capability drift: thinner mental models, inflated confidence and diffused accountability. Audiences leave with practical principles and simple protocols (including ‘AI second’ moments and proof-of-thinking norms) to design AI-enabled workplaces that become not just faster, but wiser, with a brief, evidence-led lens on attention, overload and sleep as the biological infrastructure of good judgement.
Looking for a custom keynote or workshop designed around your company’s goals and culture? The expert will create a tailored, interactive session that aligns with your objectives, values, and strategic priorities. From leadership and innovation to wellbeing and collaboration, each experience is built from the ground up to deliver measurable impact and lasting change.
Featured Projects
Book
































Frequently Asked Questions
Everything you need to know about booking an expert speaker, facilitator, host or entertainment for your event.
- If you'd like to book one of our expert speakers, email us at hello@peptalk.com, send us a chat message or give us a call, and we’ll help you out.
- We’ll take your event details — topic, audience, budget, date, and location — and create a custom speaker proposal for you within 48 hours.
- If you already have someone in mind, that’s okay too; just let us know their name! Even if they aren't listed publicly on our website, we have a huge network and work with almost everyone.
- Once you've reviewed our speaker propsal and have selected and expert shortlist, we'll double check availability and fees with your chosen expert.
- You're welcome to have a chemistry call with the speaker before making the final decision, too.
- Next, we'll send out contracts to confirm the booking. One of our experienced event producers will liase with both you and the talent on the finer details, and arrange travel if necessary, taking the stress off your plate.
Not necessarily. While the speakers listed on our website may not have worked with PepTalk in the past, they are recognized professionals in the industry and known to engage in similar events and engagements. We work with a wide variety of speaker agents and talent agencies to ensure we have the best selection of speakers, hosts, comedians and entertainers available.
We do not accommodate requests for birthday messages or any other personal, non-commercial contact with the speakers, comedians or entertainers.
We work with speakers across a variety of fee ranges, giving you the flexibility to choose someone who fits your event's needs. Virtual keynote fees in the UK and Europe typically start at £2,000, while in-person top-tier speakers can reach £25,000. In the US, virtual in-person fees range from $5,000 to over $100,000, depending on the speaker and format, such as after-dinner talks, conference keynotes, Q&As, or podcasts. Comedians generally start at £1,500 or $2,000 for a 20-minute set.
Our goal is to help you find the speaker who best matches your event’s goals and budget. We take the time to understand your event, objectives, and audience to recommend the right fit. The most expensive option isn’t always the best one, and our priority is finding the ideal speaker or expert for your needs; not the highest-priced one.
Reach out for personalised recommendations and detailed information on specific speaker fees. We’re here to offer a tailored service and are always happy to discuss your unique requirements!
There’s no additional cost for our services beyond the speaker fee — simply contact us to find the right speaker for your next business or team event. We can also work with your corporate procurement team to negotiate favourable long-term rates, simply email hello@getapeptalk.com for more information.
Partnering with PepTalk means elevating your events with our curated roster of top motivational speakers, industry experts, delivering punchy keynotes that leave a lasting impact. From talent selection, to contracts and logistics, we handle it all. We have global expert network, with over 3000 speakers from over 33 countries on our line-up.
We also provide a full range of talent, from event hosts and moderators to interviewers and corporate entertainment, ensuring your event’s success from start to finish.
PepTalk workshops are interactive learning experiences for leaders at all levels, blending theory with practical insights from industry experts. These programs, led by experienced facilitators, are designed to drive real mindset changes and equip participants with actionable skills. Workshops can be customised to meet your organisation's specific needs. Explore our workshop examples and contact us today to learn how your team can benefit.
If you notice something that needs attention or have any queries regarding an expert speaker profile, feel free to email us at experts@getapeptalk.com, and we’ll be happy to assist.






