When the bell goes at the end of the day, formal lessons at school are finished. However, learning does not simply switch off, and neither does brain development. The hours after school play an important role in how well students are able to focus, manage emotions, and learn the next day. One area that can make a real difference is screen time, not because technology is bad, but because some digital content is designed to hold attention in very powerful ways.
Dopamine is a natural chemical in the brain linked to motivation, reward and pleasure. It also supports learning by helping reinforce behaviours and focus attention. In healthy ways, dopamine is released when students push through a challenge, complete a workout, reach a personal goal, spend time in meaningful relationships, or master a new skill. These experiences build persistence, resilience and intrinsic motivation, the kind that helps a student keep going when learning feels difficult or progress is slow.
The reality is that many digital platforms, particularly social media, gaming, and short-form video, are built to be highly engaging and provide quick rewards. Endless scrolling, quick wins, streaks, likes and notifications can create frequent reward cycles that train the brain to expect stimulation on demand. Dopamine itself is not the issue, it is more about the intensity and frequency of that stimulation, especially when it becomes the main way a student winds down after school.
When students spend long periods on fast-paced, high-reward content, it can sometimes make slower-paced tasks feel harder to stick with. Over time, some students may find it more difficult to sustain attention, tolerate frustration, or stay motivated when a task requires effort before reward, which is often the nature of classroom learning. This does not mean screens automatically cause problems, but it does remind us that the type and timing of screen use matters.
We are also increasingly aware that heavy recreational screen time, particularly in the evenings, can affect sleep quality. Sleep is essential for memory consolidation, the brain’s process of storing what was learned during the day. In simple terms, what students do after the bell goes can influence how ready they are to learn the next day.
This does not mean you need to remove technology. Used well, it can support learning, creativity and connection. The goal is balance and healthy routines. After-school habits that support steady motivation and wellbeing include physical activity and sport, face-to-face social time, reading, creative pursuits (music, art, building, designing), family time, rest, and consistent sleep patterns. These activities give the brain the kind of healthy inputs that help students recharge and stay engaged for learning.
At Avondale School, we will continue to teach digital citizenship and self-regulation strategies, so students have the tools to navigate the online world wisely. At the same time, we know that habits are shaped beyond the classroom as well. If learning matters, then what happens after the bell goes matters too. The school day may end when the bell goes, but brain development continues. Working together to support healthy balance is one of the best ways we can set our young people up to thrive.
Mr Jaco Tams
Assistant Head of Secondary: Student Welfare
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