Power of connection: a no-brainer

As you pack away the Christmas decorations, reflect on the warmth and joy shared with family and friends during the holiday season.

Whatever age you may be, these moments of connection offer more than just fond memories: they provide significant benefits for brain health.

Socialising is one of the most powerful ways to protect your mental and emotional wellbeing as you age. Research consistently shows that strong social connections reduce the risk of cognitive decline, dementia and depression.

The festive season, with its emphasis on togetherness, provides opportunities  for interactions that strengthen your  brain – much like exercise strengthens your muscles. So, how does socialising promote good brain health?

Well, every conversation, laugh and shared moment activates your brain’s neural networks, keeping them engaged and flexible. These interactions stimulate cognitive processes such as memory, attention and problem solving, while also reducing stress hormones, including cortisol – assuming the social interactions are to your liking, of course. Chronic stress is harmful to the brain. So, time spent with loved ones helps protect it.

We also know from research that feeling isolated and lonely increases inflammation in the body which increases the risk of many chronic health conditions, including dementia.

Holiday socialising releases ‘feel-good’ chemicals such as serotonin and oxytocin, which enhance mood and emotional wellbeing. This blend of mental stimulation and emotional uplift creates a powerful defence against age-related cognitive decline and mental health issues such as anxiety and depression.

The joy of Christmas/New Year gatherings doesn’t have to end with the season. You can sustain these brain-health benefits by prioritising social connection.

Here are a few of my favourite recommendations for doing so:

• stay connected – keep in touch with those you saw over Christmas. A quick phone call or meet-up can reinforce relationships and reduce feelings of loneliness
• join local groups – look for clubs, classes, or volunteer opportunities that align with your interests. Regular group activities provide mental stimulation and social engagement
• plan regular get-togethers – whether it’s a monthly coffee morning, a lunch with friends or a shared hobby, scheduling social events ensures you stay connected
• try something new – explore new experiences, such as learning a skill or joining a community event, to challenge your brain and expand your social network. I like this one in particular as we know that novelty – doing something that your brain is not used to – gives it a more robust workout.

Combining physical activity and socialisation can also be really beneficial, as both activities help, but together have a synergistic effect. Consistently maintaining social bonds reduces the risk of dementia, keeps your mind sharp and supports emotional resilience. A rich social life has also been linked to better physical health, including lower blood pressure, improved immunity and better sleep.

These are important to address of themselves, but also because if they are not optimised, your brain will suffer.

Christmas reminds us of the joy that connection brings. It’s a chance to nurture relationships, spark conversations and create lasting memories – all of which contribute to a healthier, more vibrant mind. As 2025 begins, take the spirit of connection forward. If you are into New Year resolutions, then resolving to make efforts to stay in touch with others would be a great choice.

No man is an island, as the late poet John Donne put it. We need each other. We are designed to be in a group. Focusing on that will reap dividends for your brain.

 Kailas Roberts is a psychogeriatrician and author of Mind Your Brain: The Essential Australian Guide to Dementia, available at bookstores and online. Visit yourbraininmind.com or uqp.com.au