A California jury just found Meta and YouTube negligent for designing platforms that addict children. A day earlier, a New Mexico jury ordered Meta to pay $375 million for enabling the sexual exploitation of children on its platforms. Twenty-nine state attorneys general are pursuing claims against Meta. But the appeals will take years, and more trials are coming. The biological damage to your kids is happening now, and the fix does not require a courtroom. It requires a doorway.
Kids today are the first generation to grow up inside what I call an “Indoor Epidemic.” They spend an average of five hours a day on smartphones. Two-thirds of Gen Z admit they sometimes do not go outside for days. Children now spend half as much time outdoors as their parents did, with a third never playing outside daily. Between 2016 and 2022, antidepressant prescriptions for kids aged 12 to 17 rose 69%. Twenty-two percent of college students report symptoms of depression. The pattern is unmistakable: we moved childhood indoors, and childhood broke.
Luckily, science works to kids’ advantage too. About two hours of outdoor play daily cuts a child’s risk of myopia by 45%, though in California, 40% of kids already have it, and in Singapore, it’s 80% by age 18. The developing eye benefits from the brighter, more varied light and focusing that outdoors requires. The best prevention for myopia is not an app or a screen filter. It is distance and sunlight.
What the screen debate misses is that 40 seconds of looking at green space partially restores directed attention, which screens deplete. Not 40 minutes. Forty seconds. Constant scrolling overloads the prefrontal cortex, which in children is still under construction. A study published this month in the Journal of Medical Internet Research found that children who spend more time on devices are more likely to develop addictive behaviors, have difficulty sleeping, and experience cyberbullying.
Sleep is where the damage compounds. Blue light from screens suppresses melatonin by up to 80%, delaying sleep onset when viewed within an hour of bedtime and fragmenting deep sleep. That’s the stage of sleep where the brain consolidates memory, repairs muscle and runs the nightly glymphatic cleaning cycle. Many 11- to 12-year-olds — 63% — have a digital device in their bedroom, and 20% of adolescents use a device when they wake during the night. Adults who get the most bright light at night have a 50% increased chance of heart attack. A child who scrolls before bed and during the night is not just losing sleep. That child’s brain is not getting needed cleaning and maintenance.
The legal question just got answered. But the clinical question is one which parents can answer today: is my child getting enough analog time?
Analog time is unstructured, outdoor, device-free time where children use their senses, move their bodies, and allow their attention to be drawn instead of demanded. It is climbing a tree, digging in dirt, watching a bird, throwing a ball, walking to school. The soil bacterium Mycobacterium vaccae, which children encounter through outdoor play and in a garden, activates the same serotonin neurons that antidepressants target. Gardening with bare hands can be both a hobby, and for a developing brain, pharmacology.
We cannot litigate our way out of an Indoor Epidemic. We have to model our way out. The single biggest predictor of a child’s relationship with the digital world is not the age they get a smartphone. According to researchers at Harvard Medical School, it is the parent’s own device use.
Of course, technology is a permanent part of education and social life, and smartphones offer real practical benefits. The world runs on screens. So before we ask whether Instagram is a defective product, perhaps we should ask whether a childhood with no unstructured outdoor play is a defective environment.
The legal question is no longer theoretical. Two juries just answered it. The appeals will take years, and more trials are coming. But your child is growing now, and every hour spent sealed inside, bathed in blue light and algorithmic content, is an hour your child’s developing brain does not get the light, the air, the movement, and the sensory complexity it requires.
The prescription is ancient, not complicated, and doesn’t require a co-pay or have side effects. Go outside intentionally to a green or blue space and do something with your kids that everyone will like. The park down the street and your backyard are not a break from real life. For a child’s biology, it is real life.
John La Puma, M.D., is a board-certified internist in Santa Barbara and author of “Indoor Epidemic“ (March 2026). He co-taught the first skills-based CME course in nature as medicine for the David Geffen School of Medicine at UCLA.