When Keira Denker set out to understand how nature shapes childhood, she discovered something that could fundamentally change how we think about equity and mental health: for children living with disadvantage, time in greenspace may be one of the most powerful—and underutilized—tools we have. A new scoping review from the University of Illinois Urbana-Champaign, published in Frontiers in Psychology, examined 123 studies comparing how advantaged and disadvantaged children benefit from access to natural environments. The findings tell a compelling story: nearly 60 percent showed clear evidence of what researchers call "equigenesis"—the idea that people living with disadvantage actually gain more mental health benefit from greenspace than their more privileged peers.
This matters because childhood poverty and disadvantage carry real psychological costs. Children growing up in under-resourced communities face compounded stress that can delay development and trigger mental health challenges. But the University of Illinois team, led by Denker under the guidance of teaching associate professor Andrea Faber Taylor, found that nature offers a counterbalancing force. When the researchers narrowed their analysis to 24 studies specifically examining children's psychological health, the pattern became even clearer: half of those studies demonstrated that disadvantaged children showed measurably greater improvements than advantaged children, with improvements including lower anxiety levels, fewer behavioral difficulties, better cognitive functioning, and improved academic performance in reading and math.
"That doesn't mean advantaged groups don't also benefit," Faber Taylor explained. "But there may be a ceiling effect; they already have the support needed and thus demonstrate less of a boost from time in greenspace in contrast to those living with disadvantage." It's an elegant concept: greenspace acts as an equalizer, providing what some children already have in abundance through other forms of support—stress relief, cognitive restoration, a sense of belonging—while delivering outsized benefits to those who need it most.
The research extends beyond mental health alone. Study after study in the review confirmed that time in natural environments reduces stress biomarkers like cortisol and blood pressure, strengthens immune function, and alleviates ADHD symptoms. For disadvantaged children, these benefits can be transformative, yet they come at virtually no cost. A child spending an afternoon in a neighborhood park receives the same neurobiological and psychological gifts as one with access to private nature experiences or suburban greenery.
Yet Denker and Faber Taylor are pragmatic about implementation. They acknowledge a critical barrier: greenspaces in disadvantaged neighborhoods are often limited, poorly maintained, or perceived as unsafe. Rather than waiting for broader systemic change—though they advocate strongly for it—the researchers point to a concrete opportunity: school yard greening. Schools reach all children regardless of zip code or family income. By transforming schoolyards into vibrant natural spaces, communities can ensure that disadvantaged children gain regular access to the mental health benefits that nature provides.
The science is clear, and the opportunity is within reach. What remains is the commitment to act.