A recent study found that children who spend many hours each day in front of screens tend to perform worse in elementary-school reading and math tests. The researchers followed over 5,000 children in Ontario, Canada, from ages 0-5 and checked how their screen time related later to standardized test performance. They found that each additional hour of daily screen time before school age was linked to about a 10 % lower chance of reaching higher levels in reading and math in elementary school.
Why this matters to you
- Even if you’re past early elementary school, the habits you picked up when younger still matter: how much you relied on screens, how you structured your day.
- If you’re heading into health care or education (or already are), knowing that screen habits affect learning helps you understand both patients and peers.
- For your own life: screens are awesome—and everywhere—but balancing screen time with sleep, physical activity, reading and offline social life still matters.
What you can do
- Try to keep screen-use intentional: when you use it for learning, connection, fun, that’s fine. But hourly after hourly of passive screen time? That’s the risky zone.
- Mix in offline activities: reading, sports, hanging out face-to-face with friends—all of these support your brain, focus and learning ability.
- If you ever help younger people (siblings, tutoring, coaching), set a good example—show that screens are a tool, not a default sedentary way to live.
- Reflect: “Am I using this screen time to grow, or just to fill time?” Asking that helps keep your habits healthy.
