Screen time harms children, top doctors warn of 'overwhelming consensus'

The Academy of Medical Royal Colleges (AoMRC), representing senior medical bodies in the UK and Ireland, told a government consultation that there is an "overwhelming consensus" among clinicians that excessive screen time and exposure to harmful online content can damage children’s physical and mental health, and that doctors should routinely ask younger patients about their digital habits.

In its submission to the government's "Growing up in the online world" consultation, the AoMRC cited a survey of 454 doctors across its member colleges, noting that around half reported treating at least one child a week whose mental distress or physical injury was linked to online content or device use. The submission included clinical testimonies of harms ranging from trauma after viewing violent material to injuries from imitating dangerous online acts, and called for structured evidence-gathering by frontline services.

From a market perspective, the medical community's unified stance increases regulatory risk for platforms whose business models rely on prolonged user engagement and targeted advertising. The UK consultation lists policy tools under consideration — minimum age restrictions, limits on addictive features like infinite scroll, app curfews and strengthened age verification — measures that could affect ad monetisation and user growth metrics for listed companies. Investors may reassess valuations if policymakers move beyond guidance to binding rules.

Broader context includes recent government actions to strengthen online safety: the consultation closes on May 26, 2026 and the government has indicated it will act swiftly on the findings, with a formal response expected in summer 2026. International precedents, notably Australia’s moves to restrict under-16s' access to some platforms, have sharpened the policy debate and given momentum to calls for systemic reform of platform design and age-based access controls.

Analysts say the near-term outlook depends on the scope of any regulatory package and the pace of legislative follow-up. If measures are limited to design reforms and parental-support tools, impacts on listed platform revenues could be moderate; if they include age-based bans or stringent age verification, costs and user-base adjustments could be more material. Market participants will watch government guidance and company disclosures closely as indicators of potential revenue and compliance implications.