Evidence-Based Persuasive Science

Writing to persuade, while remaining grounded in science. This is category most heavily utilizes my professional judgement to tie the appropriate pieces together into a cohesive and convincing science-backed argument. Projects are grounded in a full review of the evidence, including the strongest counter-arguments, to ensure persuasion is responsible, transparent, and defensible.

Arguments are built from the science itself—not from exaggeration, selective omission, or marketing claims unsupported by evidence.

 

Includes:

  • Targeted review of supporting and opposing literature

  • Mechanism-driven scientific argumentation

  • Translation of complex data into compelling, accurate narratives

  • Anticipation and addressing of common scientific objections

  • Writing calibrated to audience knowledge and intent

 

Typical formats:

  • Thought-leadership articles

  • Long-form educational content

  • Science-backed marketing or investor materials

  • Narrative explanations of product or intervention rationale

 

Ideal for:

  • Health and wellness brands

  • Longevity and prevention-focused companies

  • Health-tech startups and founders

  • Organizations that need to persuade without compromising scientific integrity

Jenna Greenfield MD, Medical science writing, rigorously accurate, yet clear and engaging writing on medical and health science topics.

Writing Samples

This category includes a wide range of tones from marketing copy with heavily persuasive language, to a formal scientific tone with a discreet nudge toward a particular conclusion.

Following are excerpts demonstrating different degrees of persuasive tone.

Sauna and Cardiovascular Mortality: The Kuopio Ischemic Heart Disease Risk Factor Study
persuasive science writing Jenna Greenfield MD persuasive science writing Jenna Greenfield MD

Sauna and Cardiovascular Mortality: The Kuopio Ischemic Heart Disease Risk Factor Study

The relationship between regular sauna use and cardiovascular health was systematically evaluated using data from the Kuopio Ischemic Heart Disease Risk Factor Study (KIHD), a prospective, population-based cohort study conducted in eastern Finland. Initiated in 1984, this ongoing epidemiological study has followed nearly 3,000 middle-aged Finnish men and women over multiple decades to identify risk factors for cardiovascular disease and other age-related conditions.¹

Finland is particularly well suited to this study design due to comprehensive national health registers and the use of a personal identification code assigned to citizens at birth. It is also uniquely suited to studying long-term sauna use, as saunas are an integral part of Finnish culture. There are nearly as many saunas in Finland as there are people—approximately 3.3 million saunas for a population of 5.5 million.

Study Design and Population

The KIHD study enrolled participants aged 42–60 years at baseline, collecting comprehensive data on lifestyle factors, health behaviors, and physiological parameters. Sauna use frequency and duration were assessed at baseline. Participants were stratified into three groups based on frequency: infrequent users (≤1 session per week), moderate users (2–3 sessions per week), and frequent users (≥4 sessions per week). Participants were followed for over 20 years, allowing for long-term outcome assessment.

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