Social Resonance

We are not built to heal alone. From our first breath, our bodies are shaped by the people around us: a mother's heartbeat, a calming voice, a reassuring hand. Our nervous systems are constantly tuning to one another, much as one tuning fork sets another humming. The people we spend our lives with may matter as much to our health as what we eat or how we move.

Connection as medicine

In 2010, researchers brought together 148 studies following more than 300,000 people. Those with strong social relationships were 50% more likely to be alive at the end of the studies than those with weak ones. The effect was as large as that of stopping smoking, and larger than that of obesity or lack of exercise.¹ A later review found that loneliness and social isolation each raise the risk of early death by around 25 to 30%.²

The Harvard Study of Adult Development has followed the same group of men, and later their families, since 1938. Its directors say that the clearest message from more than 80 years of research is that good relationships keep us happier and healthier. The people most satisfied with their relationships at 50 were the healthiest at 80.³

The people most satisfied with their relationships at 50 were the healthiest at 80.

How we tune to one another

Our bodies don't just respond to the people around us; they fall into step with them.

• Hearts in rhythm. When mothers and babies gaze and smile at each other, their heart rhythms fall into step within less than a second.⁴ When people sing together in a choir, their heartbeats begin to rise and fall together, guided by the rhythm of the song and the breath.⁵
• Co-regulation. A calm, warm presence helps settle an anxious nervous system. Babies cannot calm themselves; they learn it from being soothed, and adults never fully lose this need. In one study, women facing a mild threat showed less stress activity in the brain when holding their husband's hand, especially those in happy marriages.⁶
• Feelings are catching. In the long-running Framingham Heart Study, happiness spread through social networks, up to three steps away. Having a happy friend who lived nearby made a person more likely to be happy too.⁷

Some therapists describe this through polyvagal theory, the idea that the vagus nerve links our face, voice and heart, so that a friendly face and warm tone of voice signal safety to the whole body.⁸ Parts of the theory are still debated by scientists, but its central message, that feeling safe with others helps the body rest and heal, fits well with the wider research.

What connection does in the body

• Calmer stress responses. Supportive relationships buffer the rise in stress hormones such as cortisol. (See The Cortisol Clock.)
• Stronger immunity. In a study where volunteers were given a cold virus, those with the most varied social ties were around four times less likely to develop a cold than those with the fewest.⁹
• Faster healing. Couples who argued with hostility healed small skin wounds more slowly, and had higher markers of inflammation, than couples who were supportive.¹⁰
• A healthier heart. Women who received more frequent hugs from their partners had higher levels of oxytocin, the "bonding hormone", and lower blood pressure and heart rate.¹¹
• Natural pain relief. Laughing together releases the body's own endorphins and raises our tolerance to pain.¹²

The quality of our connections

It isn't simply the number of people we know that matters, but how those relationships feel. A warm, supportive bond calms the body. A tense, critical or unpredictable one can keep it on high alert, sometimes more than being alone. Long-term conflict, and relationships where we never feel quite safe, are sources of stress in their own right.

That's why healthy boundaries are as much a part of social health as connection itself. Choosing to spend more time with people who leave us feeling lighter, and less with those who drain us, is a real act of self-care.

Ways to nourish connection

• Make time for people. Treat time with friends and family as seriously as any other health habit. Regular, ordinary contact matters more than grand occasions.
• Be fully present. Put the phone away. Eye contact, listening and a warm voice are how nervous systems tune to each other.
• Eat together. Sharing meals is one of the oldest ways humans bond. It also slows us down and helps digestion.
• Sing, dance and laugh together. Choirs, dance classes and comedy nights combine rhythm, breath and shared joy. (See The Sound of Stillness for more on the healing power of sound.)
• Hug. Warm, safe touch with loved ones, and with pets, releases oxytocin and calms the body.
• Join something. A walking group, allotment, class, faith community or volunteering project brings regular contact with shared purpose. Volunteering has been linked with lower depression and better wellbeing.¹³
• Reach out. If you feel lonely, you are far from alone. In the UK, many GP surgeries offer social prescribing, where a link worker can connect you with local groups and activities.

At Rootwise, we always ask about the people in your life, not just what is on your plate. Healing happens in relationship: with ourselves, with nature and with each other. Sometimes the most powerful step toward health is a conversation with a friend.