Why is losing weight so difficult—and why does the body often fight to regain it? In this episode, Juvelyne DeGuzman, NP, explains the biology of obesity in simple terms, including the role of the brain, gut hormones, genetics, metabolism, and environment. Learn why hunger is more than willpower, why weight loss can plateau, and how understanding the biology can lead to better, more individualized treatment.

Sources

1. Cell Metabolism, 2018 — GLP-1 physiology and therapeutic implications: https://pubmed.ncbi.nlm.nih.gov/29617641/
2. Journal of the American Heart Association, 2023 — Physiological adaptations and weight regain: https://pubmed.ncbi.nlm.nih.gov/37278394/

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After exploring both the challenges and benefits of smartphone use, it's time to answer the most important question: What actually works for families? In this final episode of the series, Juvelyne shares practical, evidence-based strategies to help parents create healthier smartphone habits without constant conflict. Learn simple approaches that support better sleep, stronger routines, healthier relationships with technology, and lasting family balance.

Reference:

Smartphone Acquisition and Use at Age 13 Years and Health Outcomes at Age 14 Years.

JAMA Pediatrics. 2026. Bren Z, Tran KT, Visoki E, et al.

Digital Ecosystems, Children, and Adolescents: Technical Report.

Pediatrics. 2026. Munzer T, Milkovich LM, Madigan S, et al

Digital Ecosystems, Children, and Adolescents: Policy Statement. Pediatrics. 2026. Munzer T, Parga-Belinkie J, Milkovich LM, et al.

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Throughout this series, we've explored the challenges smartphones can present for children and teens. But that's only part of the story. In this episode, Juvelyne examines the positive side of smartphone use—from staying connected with friends and family to supporting learning, creativity, organization, and emotional well-being. Discover why the goal isn't to eliminate smartphones, but to help children use them with purpose and balance.

Sources:

Smartphone use, wellbeing, and their association in children. Pediatric Research, 2025

Digital Ecosystems, Children, and Adolescents: Technical Report. Pediatrics. 2026. Munzer T, Milkovich LM, Madigan S, et al.

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Do smartphones really cause brain tumors? Should kids sleep with their phones nearby or hold them up to their heads? In this episode, Juvelyne separates common fears from the latest scientific evidence on smartphone radiation and children's health. Learn what current research says about brain tumors, radiofrequency (RF) radiation, and why sleep, screen habits, and daily behaviors remain the biggest concerns for your child's well-being.

References:

A Prospective Cohort Study of Adolescents' Memory Performance and Individual Brain Dose of Microwave Radiation From Wireless Communication.

Environmental Health Perspectives. 2018. Foerster M, Thielens A, Joseph W, Eeftens M, Röösli M.

The Effects of Radiofrequency Exposure on Cognition: A Systematic Review and Meta-Analysis of Human Observational Studies.

Environment International. 2024. Benke G, Abramson MJ, Brzozek C, et al.

Mobile Phone Use and Brain Tumour Risk - COSMOS, a Prospective Cohort Study.

Environment International. 2024. Feychting M, Schüz J, Toledano MB, et al.

Trends in Malignant and Benign Brain Tumor Incidence and Mobile Phone Use in the U.S. (2000-2021): A SEER-Based Study.

International Journal of Environmental Research and Public Health. 2025. Zhang L, Muscat JE.

Relationship Between Radiofrequency-Electromagnetic Radiation From Cellular Phones and Brain Tumor: Meta-Analyses Using Various Proxies for RF-EMR Exposure-Outcome Assessment.

Environmental Health : A Global Access Science Source. 2024. Moon J, Kwon J, Mun Y.

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Is all screen time created equal? In this episode, Juvelyne explores why what kids do on their phones may matter more than how long they use them. Learn the difference between active and passive smartphone use, how different digital habits affect children's emotional and cognitive well-being, and practical tips to help families encourage healthier screen use.

References:

Digital Ecosystems, Children, and Adolescents: Technical Report. Pediatrics. 2026. Munzer T, Milkovich LM, Madigan S, et al.

Association of Screen Time With Internalizing and Externalizing Behavior Problems in Children 12 Years or Younger: A Systematic Review and Meta-analysis.

JAMA Psychiatry. 2022. Eirich R, McArthur BA, Anhorn C, et al.

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Are smartphones changing the way kids move? In this episode, Juvelyne explores how increased screen time can reduce physical activity, increase sedentary behavior, and contribute to childhood obesity—not because phones directly cause weight gain, but because they can replace movement with hours of sitting and scrolling.

You'll learn how these everyday habits affect children's physical health and discover simple, practical strategies to encourage more movement, healthier routines, and balanced technology use.

Disclaimer: This podcast is for educational purposes only and is not intended to replace personalized medical advice. Please consult your healthcare provider for any health concerns.

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An insightful guide navigating the intersection of brain development, habits, and digital culture. They bring clarity to confusing science with vivid real-life scenarios, helping listeners understand how tech impacts focus and what we can actually do about it.

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 Key points:

• Effects on attention, executive function

• Neuroimaging findings in younger children

• Cognitive load and multitasking Citations: #5, #7

Screen Time and the Developing Brain: A Systematic Review of Neuroimaging Findings in Children Aged 0-12 Years. Developmental Psychobiology. 2026. Nimmo E, Chau M.

The Effects of Radiofrequency Exposure on Cognition: A Systematic Review and Meta-Analysis of Human Observational Studies.

Environment International. 2024. Benke G, Abramson MJ, Brzozek C, et al.

 Key points:

• Prevalence ≈23–30%

• Addiction-like features (compulsivity, loss of control)

• Strong association with poor wellbeing Citations:

  Association Between Smartphone Usage and Health Outcomes of Adolescents: A Propensity Analysis Using the Korea Youth Risk Behavior Survey. PloS One. 2023. Cha JH, Choi YJ, Ryu S, Moon JH.

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• Association with depression and anxiety

• Behavioral problems and emotional regulation

• Bidirectional relationship Citations:

  Smartphone Acquisition and Use at Age 13 Years and Health Outcomes at Age 14 Years.JAMA Pediatrics. 2026. Bren Z, Tran KT, Visoki E, et al.Recent

  Association of Screen Time With Internalizing and Externalizing Behavior Problems in  Children 12 Years or Younger: A Systematic Review and Meta-analysis. JAMA Psychiatry. 2022. Eirich R, McArthur BA, Anhorn C, et al.

  Executive Dysfunction as a Possible Mediator for the Association Between Excessive Screen Time and Problematic Behaviors in Preschoolers. PloS One. 2023. Likhitweerawong N, Boonchooduang N, Khorana J, et al.

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