I recently spoke with an anthropologist named Barry Hewlett who studies child-rearing in hunter-gatherer societies in Central Africa. He explained to me that children in those societies spend lots of time with their parents — they tag along throughout the day and often help with tasks like foraging — but they are rarely the main object of their parents’ attention. Sometimes bored, sometimes engaged, these kids spend much of their time observing adults doing adult things.

Parents in contemporary industrialized societies often take the opposite approach. In the precious time when we’re not working, we place our children at the center of our attention, consciously engaging and entertaining them. We drive them around to sports practice and music lessons, where they are observed and monitored by adults, rather than the other way around. We value “quality time” over quantity of time. We feel guilty when we have to drag our children along with us to take care of boring adult business.

This intensive, often frantic style of parenting requires a lot more effort than the style Professor Hewlett described. I found myself thinking about those hunter-gatherers last month when I read the advisory from the surgeon general, Vivek Murthy, warning that many parents are stressed to their breaking point. There are plenty of reasons for this worrisome state of affairs. One is that we don’t ignore our children often enough.

The modern style of parenting is not just exhausting for adults; it is also based on assumptions about what children need to thrive that are not supported by evidence from our evolutionary past. For most of human history, people had lots of kids, and children hung out in intergenerational social groups in which they were not heavily supervised. Your average benign-neglect day care is probably closer to the historical experience of child care than that of a kid who spends the day alone with a doting parent.

Of course, just because a parenting style is ancient doesn’t make it good. But human beings have spent about 90 percent of our collective time on Earth as hunter-gatherers, and our brains and bodies evolved and adapted to suit that lifestyle. Hunter-gatherer cultures tell us something important about how children are primed to learn.

A parenting style that took its cue from those hunter-gatherers would insist that one of the best things parents can do — for ourselves as well as for our children — is to go about our own lives and tote our children along. You might call it mindful underparenting.