Social Connection and Healthy Aging

There’s a powerful, often underestimated cornerstone in the prescription for vibrant and fulfilling aging: social connection. Friendship, community, and meaningful connection are not just “nice to have”—they’re vital for our mental, emotional, and even physical well-being. In fact, social connection has been linked to improved cardiovascular health, increased longevity, and lower risk of dementia.

I have to confess that as an introvert, putting myself out there isn’t always easy. According to some quiz I likely took in the back of a magazine, I’m an “extroverted introvert”. This basically means that I can step up, turn it on, and fully enjoy myself in a social situation, BUT . . . then I need a nap to recover.

So, for my own personal benefit, and for my fellow introverts – let’s take a look at the tangible benefits of social engagement and connection!

The Science of Social Connection and Aging

Research has shown time and time again that social connection is a major predictor of health outcomes, as important as – if not more so than – diet, physical activity, or even smoking.

Social isolation has been found to have
a similar impact on mortality risk
as smoking 15 cigarettes a day.

PLoS Medicine article and related research,
“Social Isolation as a Risk Factor for Mortality”

1. Social Connection and Cardiovascular Health

Studies published in multiple journals, including the Journal of the American College of Cardiology, have demonstrated a significant relationship between social isolation and cardiovascular health. Low social support was associated with a 29% increased risk of coronary heart disease and a 32% increased risk of stroke.

How does this work? Social connections are thought to act as a buffer the physiological effects of stress which reduces burden on the cardiovascular system. This occurs by stimulating the sympathetic nervous system, or “rest and relax” center.

2. Connection Keeps the Brain Sharp

Regular social interaction is linked to a lower risk of cognitive decline and dementia. According to a 2021 study in The Journals of Gerontology, older adults with frequent social contact showed slower memory decline.

When are are socially engaged multiple regions of our brain are stimulated. This cognitive stimulation promotes neuroplasticity (the brain’s ability to reorganize and adapt by forming new neural pathways) and maintains neural networks. It has been found that this stimulation helps build cognitive reserve, which is the brain’s resilience to aging and neurodegenerative disease, including Alzheimer’s Disease.

3. How Community Benefits Immune Function

Social ties reduce the body’s stress response, including cortisol levels, and improve our immune system’s regulation. This UCLA study even showed that people who feel socially supported have lower markers of inflammation . . . and you all know how I feel about inflammation. Keeping it in check is crucial for preventing age-related diseases.

In fact, there is an intricate link between our mental state and immune function. Studies have shown that loneliness and social isolation can lead to chronic low-grade inflammation and impaired immune responses. This article discusses a study that identifies specific proteins created by the body that are linked to loneliness and social isolation and their connection to inflammation and immune responses.

4. Mental Health Benefits of Social Connection

It’s no surprise that having a supportive community benefits our mental health. Social connection acts as a crucial buffer against psychological distress. In fact, neuroimaging studies have shown that social interaction activates brain regions associated with reward and positive emotions. This causes the release of “positive” neurotransmitters including oxytocin – also known as the “bonding hormone.”

Not surprisingly, social isolation has been linked to increased activity in brain regions associated with negative emotions and stress, contributing to anxiety and depression.

5. Social Connection Supports Longevity

For decades studies have shown a consistent correlation between social engagement and longevity. This landmark study published in PLoS Medicine found that individuals with strong social relationships had a 50% increased likelihood of survival, regardless of age, gender, or health status.

What If We View Social Interaction as a Form of Self-Care?

That warm feeling of connection and laughter feels good! And now we see the science that supports the health benefits of engaging with friends and fostering community.

Stay tuned! Next week I’ll be posting a follow-up article on cultivating social connections. Think of it as “an introvert’s guide” for community building! 😃

Thank you for taking some time out or your day to learn with me. I’m so grateful for the community that is being built right here!

Happy to be linking up with: A Little Bit of Everything, Momfessionals, Marsha In The Middle