When my younger son was between five and nine, he used to climb into bed with my grandmother before the sun came up. She was not a fan of mornings and never had been. She was also the acting matriarch of the family, a role she defended quite aggressively, and the women who joined it learned to be careful. A small boy got past all of that without paying anything. She came to love those mornings, the attention he gave her and the affection.
I think about those mornings whenever someone tells me that calm is something you generate yourself. Neither seemed to be finding that calm alone. A boy who has never needed a reason for closeness and a very old woman were lying close in the dark, and both of them came down. This piece is about what I think was happening in that bed, what the research says about it, where the research stops, and what it costs when there is nobody to lie down beside.
§ 1 · The first clearing
As one whom his mother comforteth, so will I comfort you.
We arrive with limited ways to settle ourselves. Newborns do have some: sucking, turning away, going still. But they are small beside what a frightened infant needs, and a baby can cry out into the dark without yet being able to find its own way back. Responsive care helps those first capacities grow. The settling, the long exhale of a body that believes it is safe, is handed over slowly, across thousands of small exchanges, by someone who already knows the way.
You can see the dependence the moment it is interrupted. In the still-face experiment that Edward Tronick and colleagues described in 1978, a parent who has been warmly playing with a baby suddenly goes blank. Within a minute or two the infant's poise comes apart. It gestures, strains, looks away, and often cannot recover until the parent returns. The borrowing also shows up in the body. In work by Ruth Feldman and colleagues in 2011, mothers and three-month-olds coordinated their heart rhythms during face-to-face play, with the rise and fall of their beats falling into step within a second or less. It is not a shared heart rate. It is a shared direction. I'd be careful not to read too much into any single study of infants, but the picture is consistent across a good deal of work: the young nervous system has few reliable ways back on its own.
I did not have much of this at the start. I had a few adults who came down with me and a lot of years of learning to do it without them, which is a perfectly workable education and a lonely one. I tell you that so that you hear the next claim from someone who has reason to doubt it. Some of the calm you call your own was lent to you first.
§ 2 · The lifelong reach
We never quite graduate from one another. We learn to wait longer between rescues, and we grow able to lend ourselves some of the steadiness we once could only borrow. But the grown body still seems to drop its guard fastest in good company.
Breath, touch and gaze are three ways that steadiness can travel between us: the breath we begin to match without deciding to, the touch the skin reads as safety or threat by its speed and warmth, and the held look that says I am here, and I am not afraid. Ruth Feldman's research on biobehavioral synchrony finds this kind of coupling recurring across close bonds, between parents and children, partners and friends.
Three things are easy to run together here: bodies falling into step, arousal rising, and feeling safe. Studies often measure the first and assume the third, and matching rhythms can happen in fear as readily as in calm. What I take from the small laboratory studies is modest. Bodies near each other influence each other, and the influence seems strongest where there is already trust.
My younger son and I drive together a lot, and we mostly don't talk. We don't need to. I have no experiment to offer you about that. I only know that neither of us has ever felt the need to fill the silence.
§ 3 · The empty clearing
Solitude that is chosen is not the same as isolation that is endured, and many people need and enjoy time alone. The research concerns the gap between the connection a person has and the connection they want. For a creature built to come down in company, wanted company that does not come may be read as exposure. John Cacioppo and Louise Hawkley proposed that this drives an implicit watchfulness for social threat, and in a sleep laboratory lonely adults showed more micro-awakenings and less restorative sleep, as if standing watch even while unconscious.
The scale is harder to dismiss. A 2010 meta-analysis of 148 studies found that stronger social relationships were associated with roughly a fifty percent greater likelihood of survival. The studies are observational, and loneliness and poor health may feed each other, but the direction is consistent.
I should add what I know of this from the inside. I spent much of my life proud of needing no one. The empty clearing doesn't feel like loneliness when you've renamed it as strength. It feels like being fine. I only started to notice it when I was not.
§ 4 · What a screen can and cannot carry
A screen can carry real care: a voice, a face, a joke at midnight. It cannot carry every part of being together. In a 2023 experiment, Nan Zhao and colleagues compared pairs of people looking at each other's faces in person with pairs doing the same over a live video link. It was a face-gazing task and not a conversation, but in person the regions involved in social processing were more active and the two brains more coupled. Touch, which video leaves out, is carried partly by skin fibers that respond to slow, gentle stroking (Löken and colleagues, 2009). Video is a lifeline for many people. The claim is narrower than a complaint about technology: some of what a nervous system is listening for does not travel well through glass.
The plainest conclusion is also the hardest to schedule. Be in a room with another person, unhurried, and let two nervous systems do what they know how to do.
§ 5 · The gift that moves both ways
We picture soothing as charity, the strong spending themselves on the weak. The research suggests something kinder. Tristen Inagaki and Naomi Eisenberger found that giving support to a loved one was linked to lower threat-related activity in the brain and a dampened stress response in the giver's body. To care for someone seems to quiet your own alarm.
The studies are small, and caring is not free. I look after my younger son full time, and some days it is a relief when he is settled outside with his music and I can work. But a very old woman was steadied by a small boy's attention, and he, I think, by being trusted to give it. The current runs in both directions.
Two nervous systems don't melt into one. They stay two, and still help each other settle. There may even be an upward turn, a loop in which the calmer we grow in company the more capable of company we become. Early work by Bethany Kok and Barbara Fredrickson found something like it. A later claim of the same kind was disputed in a published reanalysis, and the original authors have defended their analysis. I hold the loop as a possibility the data support only in part.
§ 6 · The instrument, and the clearing
I build tools, so I should say what they can't do. A body that has stood the long watch is often the last to notice it is still standing. The days thin, the nights shallow, and we sometimes reach for a screen when a person is what we need. Heart rate variability, widely used as an index of how flexibly the autonomic system moves between mobilization and rest, can give one outside reading, with real limits on what it can show. The questionnaire and sleep-pattern layers in my tools try to ask whether a life is carrying the connection a nervous system needs. Those are proposals, not validated measures, until independent samples test them.
An instrument can't be the clearing. At its best it reads a gauge and points away from itself, toward a real face, a shared, unhurried hour, the parts of being together a screen cannot carry. If a tool I build ever keeps you looking at it when you should be looking at someone, it has failed. The state can't be ordered. The conditions can be prepared, and the main condition is another person.
That bed
I can't measure what happened in my grandmother's bed. I know a small boy climbed in before dawn, and a very old woman who disliked mornings came to love them, and that both of them, I think, came down. If I have a wish for you, it is a modest one: that someone climbs in beside you now and then, and that you get to be someone's morning.
Sources and further reading
Tronick, E. Z., Als, H., Adamson, L., Wise, S. & Brazelton, T. B. (1978). The infant's response to entrapment between contradictory messages in face-to-face interaction. Journal of the American Academy of Child Psychiatry, 17.
Feldman, R., Magori-Cohen, R., Galili, G., Singer, M. & Louzoun, Y. (2011). Mother and infant coordinate heart rhythms through episodes of interaction synchrony. Infant Behavior and Development, 34. Feldman, R. (2017). The neurobiology of human attachments. Trends in Cognitive Sciences, 21.
Hawkley, L. C. & Cacioppo, J. T. (2010). Loneliness matters. Annals of Behavioral Medicine, 40; Cacioppo, S. et al. (2016). Social isolation and neural processing of social threat. Cognitive Neuroscience.
Holt-Lunstad, J., Smith, T. B. & Layton, J. B. (2010). Social relationships and mortality risk. PLoS Medicine, 7.
Zhao, N., Zhang, X., Noah, J. A., Tiede, M. & Hirsch, J. (2023). Separable processes for live in-person and live zoom-like faces. Imaging Neuroscience. Löken, L. S., Wessberg, J., Morrison, I., McGlone, F. & Olausson, H. (2009). Coding of pleasant touch by unmyelinated afferents in humans. Nature Neuroscience, 12.
Inagaki, T. K. & Eisenberger, N. I. (2012). Neural correlates of giving support to a loved one. Psychosomatic Medicine, 74; Inagaki, T. K. & Eisenberger, N. I. (2016). Giving support to others reduces sympathetic nervous system-related responses to stress. Psychophysiology, 53.
Kok, B. E. & Fredrickson, B. L. (2010). Upward spirals of the heart: autonomic flexibility, as indexed by vagal tone, reciprocally and prospectively predicts positive emotions and social connectedness. Biological Psychology, 85; Kok, B. E. et al. (2013). How positive emotions build physical health. Psychological Science, 24; Heathers, J. A. J., Brown, N. J. L., Coyne, J. C. & Friedman, H. L. (2015). The elusory upward spiral: a reanalysis of Kok et al. (2013). Psychological Science, 26.
Thayer, J. F. & Lane, R. D. (2000). A model of neurovisceral integration in emotion regulation and dysregulation. Journal of Affective Disorders, 61; Shaffer, F. & Ginsberg, J. P. (2017). An overview of heart rate variability metrics and norms. Frontiers in Public Health, 5.