Brooke Nickel
Brooke Nickel focuses on how health information, marketing and celebrity narratives shape the way people think about medical tests, cancer risk and screening. She writes for The Conversation on the pressures created by expanding health technologies, the risk of overdiagnosis, and what evidence actually supports different forms of prevention and early detection.
Health communication, cancer stories and public response
Much of Nickel’s recent work examines how stories about cancer influence public understanding and behaviour. In her coverage of celebrity prostate cancer disclosures, she explains how high-profile announcements can drive people to seek testing, while also exploring the potential downsides of more testing when the benefits are uncertain. Across her cancer reporting she looks at how media narratives about risk, early detection and survivorship interact with guidelines and evidence, and how these stories can either support or undermine informed decision-making.
She regularly writes about changes and debates in cancer screening practice. In breast cancer screening, she outlines proposals to revise age ranges and approaches, and focuses on what is known and unknown about the impact on outcomes for women. Her work highlights how evolving evidence, new technologies and public expectations collide, and she explains the trade-offs between detecting more disease and avoiding harms such as false positives, unnecessary treatment and anxiety. Cancer stories are a recurring subject: she returns to how people interpret risk statistics, how they weigh reassurance against harm, and how health systems can better support informed consent.
Overdiagnosis, overtesting and the risks of more medicine
Nickel’s reporting consistently interrogates the expansion of testing and screening, and the problem of overdiagnosis. She covers research on how social media promotes health tests with the potential for overuse, examining posts that encourage people to seek scans and blood tests that are not recommended for low-risk populations. In these pieces she breaks down why seemingly proactive health checks can lead to cascades of further tests, incidental findings and treatment for conditions that might never have caused harm.
Her analysis of the booming longevity industry extends this theme to commercial wellness and anti-aging services. She describes how full-body MRI, extensive blood panels and other high-tech tests are marketed as ways to catch disease early, despite a lack of evidence that they improve health outcomes for otherwise healthy people. She links these offerings to broader patterns of medical overuse, showing how fear of illness, celebrity endorsements and venture-backed marketing can push consumers toward expensive, low-value interventions. Across these articles, she emphasises the importance of robust evidence, guideline-based practice and clear communication about both benefits and harms.
Social media, influencers and health misinformation
Another strand of Nickel’s coverage focuses on health misinformation and the role of influencers in shaping public beliefs. She writes about why people turn to social media for health information, analysing almost 1,000 posts to understand how tests and treatments are framed as lifestyle choices or personal optimisation rather than medical decisions. Her work shows that wellness influencers often lack health qualifications yet still present advice with high confidence, contributing to confusion about what is safe, effective and necessary.
In interviews and public engagement, she discusses how misleading or oversimplified content can normalise unnecessary testing and fuel distrust of established guidelines. She highlights specific patterns, such as the promotion of self-funded scans or screening outside recommended age ranges, and explains how algorithms amplify sensational claims over balanced information. Her reporting offers practical ways for people to assess the credibility of online health advice and points towards strategies clinicians and health organisations can use to counter misinformation.
General practice, screening policy and system-level impacts
Nickel’s research-linked writing often draws on the perspectives of general practitioners and the realities of clinical practice. She co-authors work exploring how clinicians understand issues such as mammographic breast density, screening recommendations and patient expectations, and she brings these insights into her journalism on breast cancer screening and policy change. She is interested in how system-level decisions about screening programs play out in consultations, and how doctors balance guideline adherence with individual patient concerns.
Her broader health services work looks at modifiable cancer risk factors, communication about uncertainty, and the design of screening programs that minimise harm while maintaining public trust. Across outlets, she returns to the question of how to support people to make informed, evidence-based choices in an environment saturated with commercial messaging, celebrity stories and social media advice. This combination of research expertise and accessible explanatory writing is a defining feature of her coverage.
4 more health journalists.
Abida Tasnim
Abida Tasnim is a health writer for The Daily Star who focuses on clear, practical guidance that helps readers recognise risks early and act before everyday illnesses turn into wider public health problems. She reports on infectious disease prevention, using measles coverage to show how outbreaks start with individual decisions and behaviours, not just hospital statistics. Her work explains what happens during an outbreak and then anchors the story in simple steps people can take, such as avoiding crowded places when symptoms appear, practising good hygiene, and seeking medical advice early. She writes direct, action‑oriented health explainers that turn clinical questions about contagion and disease burden into everyday choices. Across her beat, she stresses early recognition, timely care, and prevention as the foundations of healthier communities.
Adrián Carballo Casla
Adrián Carballo Casla stands out for turning complex cohort data on ageing into clear, food‑level advice on what older adults should eat to protect brain health and slow chronic disease. He is a researcher in nutritional epidemiology focused on ageing and chronic disease prevention and a postdoctoral researcher in geriatric epidemiology at Karolinska Institutet, writing health explainers for The Conversation. He reports on how diet quality, especially Mediterranean and Mind‑style patterns, shapes dementia risk, grey matter loss and neurocognitive ageing, and how healthy versus pro‑inflammatory diets alter multimorbidity trajectories. His articles translate findings on flavonoids, polyphenols, folate, omega‑3 fats and dietary nitrates into specific food choices and small, practical changes. Much of his coverage is anchored in his own studies on multimorbidity, high‑risk older adults and tailored dietary recommendations, often syndicated to other outlets.
Ahmed Elbediwy
Ahmed Elbediwy brings a lab-based understanding of cancer biology and clinical biochemistry to public-facing health reporting, linking drug mechanisms and molecular pathways to everyday choices about medicines and products. He writes for The Conversation on weight-loss injections, cancer overdiagnosis and anti-ageing supplements, focusing on obesity medicine, cancer signalling, screening trade-offs, skincare and supplement science. His pieces on GLP-1 drugs such as Ozempic, Wegovy and Mounjaro explain why some people do not respond, how gut hormones and appetite signals work, and where psychological support and nutrition fit alongside prescriptions. He co-authors explainers on cancer risk and overdiagnosis and on whether supplements can reverse ageing, separating established knowledge from emerging research. An award-winning senior lecturer at Kingston University, he favours clear, structured explainers, careful definition of key terms and evidence-based appraisal over hype.
Amanda Sheppeard
Amanda Sheppeard is a managing editor and health journalist known for long, detailed explainers that connect complex clinical research, disability policy and political narratives with the daily realities of doctors and patients. She works at The Medical Republic across editorial leadership and commercial content while reporting widely on medicine for its specialist titles. Her real beat spans autism, disability policy, autoimmune disease, infectious threats and system pressures in primary care and hospitals. She covers subjects such as autism diagnosis and the NDIS, rheumatology’s clinical shifts, weight-loss agents in rheumatoid arthritis, infection control, antimicrobial resistance and new modalities like CAR T-cell therapy and microneedles. She reports by doing the synthesis inside the story, linking trial design, molecular targets, funding rules and policy changes to concrete decisions and workflows in clinics and hospitals.