Anticancer Living: An Academic Medical Center's Case for Lifestyle, Read Against NCI

Anticancer Living is co-written by Lorenzo Cohen, a psychologist who directs an integrative medicine program at a major US academic cancer center, and Alison Jefferies, a writer and researcher. That institutional position, working within a hospital that treats cancer patients every day rather than writing entirely outside clinical medicine, sets the book apart from much of the popular anticancer-lifestyle genre.

The book organizes its recommendations around what the authors call the Mix of Six: social and family connection, stress management, diet, exercise, sleep, and environmental exposure. Each factor gets its own section connecting research on that domain to cancer risk and, in places, to outcomes after diagnosis.

It is not a memoir in the way some books in this genre are; Cohen is not writing primarily from his own cancer diagnosis. Its authority instead rests on his clinical and research position, and the book reads more like a research-literate synthesis aimed at a general audience than a personal survival narrative, closer in register to a popular science book than to a memoir.

The book does draw on patient stories throughout, individuals Cohen and Jefferies encountered through the integrative medicine program, used to illustrate each of the six factors in practice. Those stories function as case examples rather than as the book's central evidentiary claim, which instead rests on the research literature the authors cite alongside them.

The book moves through each of the six factors in turn. The social connection chapter discusses research linking strong relationships and support networks to better outcomes and quality of life during illness. The stress chapter covers the physiological effects of chronic stress and practices such as mindfulness and meditation. The diet chapter recommends an eating pattern built around vegetables, fruit, whole grains and legumes, with reduced red meat, processed food and added sugar, broadly in the same direction as other books in this genre. The exercise chapter reviews evidence connecting physical activity to lower cancer risk and, in some studies, better outcomes among people previously treated for cancer. The sleep chapter addresses sleep's role in immune function and recovery. The environment chapter covers exposures such as certain chemicals and pollutants.

Each chapter closes with practical suggestions a reader might act on, framed as reasonable steps rather than guaranteed interventions: building a regular walking habit, prioritizing a consistent sleep schedule, seeking out a support group or maintaining closer contact with family and friends during treatment, and reducing exposure to specific chemicals where practical. The tone throughout favors realistic, incremental changes over an all-or-nothing program.

There is no recipe section or clinical protocol; the book functions as an argument and evidence synthesis across six domains rather than a practical how-to guide with meal plans or exercise schedules attached, though it does offer general practical suggestions within each chapter.

The book's clearest strength is its institutional grounding. Cohen's day-to-day work sits inside a cancer center's integrative medicine program, which generally means his framing of lifestyle interventions as supportive of, not a substitute for, conventional treatment reflects how these programs are actually positioned in mainstream oncology settings, rather than a fringe or oppositional stance toward standard care.

The breadth of the Mix of Six framework is also a genuine strength: by covering social connection, sleep, and stress alongside diet and exercise, the book avoids the narrower, food-focused tunnel vision of some other titles in this genre, and each of those factors has a real, if varying, evidence base connecting it to general health and, in some cases, to cancer-specific outcomes.

The evidence base varies considerably across the six factors, and the book's uniform framework can flatten that variation. Diet and exercise have the most substantial population-level evidence connecting them to cancer risk, largely through WCRF's ongoing evidence reviews. Sleep and stress have real connections to general health and immune function, but the evidence specifically tying them to cancer outcomes, as opposed to quality of life during treatment, is less developed and more mixed. Presenting all six factors within a single confident program can imply a more settled and uniform evidence base than currently exists.

As with other books in this genre, most of the human research behind these claims is observational: it shows people who exercise more, sleep better, or manage stress well tend to have somewhat better outcomes, without proving that changing any one factor causes that improvement for a given individual. NCI's material on diet and cancer risk makes this distinction directly, noting that population studies show associations rather than proof of cause and effect for a specific person.

The book's institutional grounding is a strength but not a guarantee; a book written by a researcher at a respected cancer center can still present emerging or contested research with more confidence than the underlying studies support, and a reader should not treat institutional affiliation alone as settling a specific claim.

This book is a useful case for practicing the distinction, because its overall approach is more measured than some others in this category while still occasionally outrunning the evidence on specific points.

NCI's guidance for evaluating a cancer-related health claim points toward asking whether it is supported by human clinical trials or well-designed observational studies, ideally replicated across independent research groups, and whether the source distinguishes association from causation rather than blurring the two. NCI also advises disclosing any lifestyle or supplement change to an oncology care team, since some interventions, including certain supplements, can interact with cancer treatment.

WCRF's Cancer Prevention Recommendations offer a useful benchmark because they are explicitly evidence-graded by an independent scientific panel and periodically revised as new research accumulates, rather than assembled by a single author or team. Diet and physical activity, two of the Mix of Six, sit squarely within WCRF's evidence-graded recommendations. Social connection, stress, sleep, and environment are reasonable, plausible contributors to general well-being and, in some research, to outcomes, but they carry a less mature and less uniformly graded evidence base than diet and exercise do.

None of this means the book's recommendations are wrong to follow for general well-being; social connection, sleep, and stress management are worth attending to for quality of life regardless of their precise effect on cancer outcomes specifically. The caution is narrower: a reader should not treat any single factor in the Mix of Six as proven to change cancer's course the way a clinical trial-tested treatment is proven to, and the book's confident, unified framing can make that distinction harder to see than it should be.

For the graded evidence directly, see diet and cancer risk and healthy eating patterns and cancer risk.

It suits a reader who wants a broader, less food-centric lifestyle framework than most anticancer diet books offer, written with real institutional grounding in an academic cancer center's integrative medicine practice. It suits someone looking to improve quality of life and general health during or after treatment across several domains at once, understood as supportive of standard care.

It also suits a reader who has already read a narrower, single-factor book in this genre and wants a broader picture of how several lifestyle domains interact, rather than a book built around one dietary villain or one dietary hero. The Mix of Six framework, whatever its limits as a unified evidence claim, is a genuinely useful organizing tool for thinking about supportive care holistically.

The book's publication by a major trade press, rather than a niche wellness imprint, also reflects the extent to which integrative and supportive oncology had entered mainstream hospital practice by the time it was written, a shift that itself is worth noting: what once sat at the margins of cancer care, attention to sleep, stress, and social support alongside treatment, is now built into many academic cancer centers' standard offerings, even where the research base for each individual factor remains uneven.

That mainstreaming also cuts against a common assumption that integrative approaches sit in opposition to conventional oncology. Cohen's own program operates inside, not alongside or against, a major cancer center's standard treatment pathway, and the book's framing throughout reflects that: supportive practices offered in addition to surgery, chemotherapy, radiation or other standard treatment, evaluated by the same institution delivering that standard treatment, rather than as a competing philosophy.

It does not suit a reader looking for a substitute for conventional treatment, and the confident, unified framing of the Mix of Six should not obscure that the six factors carry meaningfully different levels of evidence. Anyone considering a significant change during active treatment, particularly to diet, supplements, or exercise intensity, is better served bringing it to their own oncology team first.

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• World Cancer Research Fund — Cancer Prevention Recommendations
• NCI — Diet
• NCI — Complementary and Alternative Medicine

This page discusses Anticancer Living for education. It is not medical advice, and nothing here is a judgement of anyone's real medical care.