One Young Mind

Inside the teen brain: How social media shapes development with Dr Samantha Marsh

27 Oct 2025

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This podcast is brought to you by the B416 team.Content Warning: This episode discusses topics including suicide, mental health, eating disorders, and self-harm. If you or someone you know is struggling, please reach out for help — you are not alone. In this episode, we dig into what’s actually happening inside the developing teen brain when young people scroll, swipe, tap and refresh. Dr Samantha Marsh joins us to break down the neuroscience behind social media use and why adolescents are particularly vulnerable to the design of these platforms. We explore how dopamine pathways are shaped during adolescence, what constant digital stimulation means for emotional regulation and attention, and what’s not developing when so much of a young person’s social world happens online. This conversation offers clarity for parents, educators and caregivers trying to navigate an overwhelming digital landscape. Dr Marsh cuts through the noise with science, compassion, and a clear call to action: understanding the brain is key to supporting our young people This is an important, eye-opening conversation about the very real risks of social media, and the changes we can all make to support one young mind at a time. New Zealand Helplines: Lifeline: Call 0800 543 354 or text 4357 (HELP) (available 24/7) Suicide Crisis Helpline: Call 0508 828 865 (0508 TAUTOKO) (available 24/7) Youth services: (06) 3555 906 What’s Up: Call 0800 942 8787 (11am to 11pm) or webchat (11am to 10.30pm) Depression helpline: Call 0800 111 757 or text 4202 (available 24/7) Aoake te Rā – Free, brief therapeutic support service for those bereaved by suicide. Call 0800 000 053. Helpline: Need to talk? Call or text 1737 The Lowdown: Free text 5626 or visit thelowdown.co.nz EDANZ (Eating Disorders Association NZ): Visit ed.org.nz for resources and support If it is an emergency and you feel like you or someone else is at risk, call 111 Follow us @b416.nz or find out more at b416.co.nz To find out more about Dr Samantha Marsh, click here.See omnystudio.com/listener for privacy information.

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13:00H | 21 DIC 2025 | Fin de Semana

01 Jan 1970

Fin de Semana

10:00H | 21 DIC 2025 | Fin de Semana

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Fin de Semana

12:00H | 20 DIC 2025 | Fin de Semana

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Fin de Semana

2ª PARTE | 06 ENE 2026 | EL PARTIDAZO DE COPE

01 Jan 1970

El Partidazo de COPE

3ª PARTE | 22 ENE 2026 | EL PARTIDAZO DE COPE

01 Jan 1970

El Partidazo de COPE

3ª PARTE | 04 MAR 2026 | EL PARTIDAZO DE COPE

01 Jan 1970

El Partidazo de COPE

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One Young Mind

Inside the teen brain: How social media shapes development with Dr Samantha Marsh

This episode hasn't been transcribed yet

Other recent transcribed episodes

13:00H | 21 DIC 2025 | Fin de Semana

10:00H | 21 DIC 2025 | Fin de Semana

12:00H | 20 DIC 2025 | Fin de Semana

2ª PARTE | 06 ENE 2026 | EL PARTIDAZO DE COPE

3ª PARTE | 22 ENE 2026 | EL PARTIDAZO DE COPE

3ª PARTE | 04 MAR 2026 | EL PARTIDAZO DE COPE

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