Humans are wired for connection. Yet loneliness and social isolation are increasingly common — and increasingly recognised as powerful risk factors for poor health, cognitive decline, and reduced quality of life as we age.

In Episode 5 of Be Well Age Well, hosts Dr Susannah Ward and Dr John Ward explore the science of social connectionand its profound impact on ageing, brain health, and longevity with leading cognitive neuroscientist Professor Frini Karayanidis.

Professor Karayanidis is Director of the Functional Neuroimaging Lab at the University of Newcastle and an internationally recognised expert in cognitive neuroscience and healthy ageing. Her multidisciplinary research focuses on identifying brain-based markers of age-related cognitive decline, understanding how lifestyle factors influence brain health, and developing community-led approaches to help people remain mentally and physically well for longer. She is an elected Fellow of both the Society for Psychophysiological Research and the Association for Psychological Science, and a recipient of the Lifetime Achievement Award from the Australasian Society for Cognitive Neuroscience.

Together, they unpack:

• The biological and neurological basis of social connection
• How loneliness and social isolation affect the brain, mental health, and physical health
• Why social connection is a recognised modifiable risk factor for dementia
• What “enough” social connection really means — and why quality and perception matter more than quantity
• How social connection influences mood, motivation, movement, and behaviour
• The differences between digital connection and in-person, sensory connection
• Evidence-based strategies to reduce isolation and rebuild connection at any age
• The role of communities, culture, and shared purpose in supporting belonging

A key message throughout the episode is that social connection is deeply individual. There is no single formula or magic number — what matters most is whether people feel seen, valued, and able to be themselves.

Key Takeaways & Suggested Actions:

• The brain is fundamentally social and remains plastic across the lifespan
• Loneliness is a health issue, not a personal failure
• Connection can be “stacked” with other health habits — movement, learning, volunteering
• Small, local, and meaningful interactions matter
• Communities and shared spaces play a vital role in healthy ageing

This episode reframes social connection away from obligation or extroversion and toward belonging, authenticity, and purpose, offering realistic starting points for those feeling isolated and practical guidance for those supporting others.

Whether you’re a clinician, a caregiver, or someone reflecting on your own community and connections, this conversation provides compelling evidence — and genuine hope — that it is never too late to reconnect and thrive.

Reach out to Dr Susannah Ward here www.ataraxiacollective.com.au