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A healthcare professional uses a yellow measuring tape to assess waist size, reflecting the new definition of obesity beyond BMI, whilst only their upper bodies and hands are visible.

A new way to define obesity

Is there a better way to classify obesity than relying on BMI alone? We spoke to Dr Heinz Freising at the International Agency for Research on Cancer (IARC) about this question and his research into a new definition of obesity.

Building research where it matters: lessons from studying breast cancer in Sub-Saharan Africa

A group of people wearing bright orange shirts stand together outdoors, smiling at the camera. One person holds a sign that reads CANCER IS JUST A WORD, raising awareness about breast cancer in sub-Saharan Africa. Trees and a billboard are visible in the background.

Building research where it matters: lessons from studying breast cancer in Sub-Saharan Africa

Prof Reginald Annan makes the case for African-led research – and shares what building it from the ground up actually looks like.

Thank you for Every Step

A group of people wearing blue World Cancer Research Fund T-shirts smile and pose together outdoors, holding blue clackers. Blue banners and trees are visible in the background.

Thank you for Every Step

Rachael Hutson, CEO at World Cancer Research Fund, reflects on the London Marathon 2026 and shares other ways to support our life-saving research.

Ultra-processed foods: reflections on what we know and what is coming

An assortment of fresh vegetables sits beside ultra-processed foods (UPFs) like crisps and biscuits, highlighting the contrast between wholesome choices and items increasingly linked to health concerns such as cancer.

Ultra-processed foods: reflections on what we know and what is coming

As consumption of ultra-processed foods rises globally, so do concerns about their health impacts. We unpack what UPFs are, examine emerging evidence on cancer risk, and highlight why further research is critical.

Alcohol increases bowel cancer risk across major tumour subtypes

A person sitting in a chair, holding their stomach with both hands, appearing to experience abdominal pain or discomfort. The person is wearing a light shirt and dark trousers.

Alcohol increases bowel cancer risk across major tumour subtypes

The alcohol–cancer association looked broadly similar across MSI, CIMP, BRAF and KRAS tumour subtypes of bowel cancer.

The secret to healthy ageing: clues from the immune system of centenarians

An elderly woman with white hair smiles joyfully as another person gently brushes her hair. The setting appears to be a cosy home with family photos on the wall in the background.

The secret to healthy ageing: clues from the immune system of centenarians

What can we learn about healthy ageing and evading disease from the immune system of people over 100 years old?

More than half of patients receiving cancer treatments had a history of obesity, finds study

A white bathroom scale with a green measuring tape wrapped around it, set against a bright yellow background. The scale’s dial is visible, showing numbers in black.

More than half of patients receiving cancer treatments had a history of obesity, finds study

A recent publication has provided valuable real-world data on obesity prevalence among people living with cancer.

Kemi’s story: Turning grief into hope through fundraising

A person with a short curly hairstyle and glasses, wearing a pink crop top and red trousers, poses in a strong boxing stance against a plain white background—channelling the determination of Kemi Williams' London Marathon cancer fundraising story.

Kemi’s story: Turning grief into hope through fundraising

A runner from South London is taking on the London Marathon in her parents’ memory.

Morning lark or night owl: the link between sleep traits and reproductive cancers

A woman sits up in bed at night reading a book. It's nighttime and a bedside lamp is on.

Morning lark or night owl: the link between sleep traits and reproductive cancers

New research from the University of Ioannina builds on existing evidence which suggests that a later sleep chronotype may be associated with a higher risk of breast and ovarian cancer.

Courtney’s story: Running the London Marathon for hope and change

Runners take part in a road race on a bridge beneath a Willis Avenue Bridge sign. The sun is shining, and one runner in the centre is smiling and waving at the camera. Other runners are seen in various athletic outfits.

Courtney’s story: Running the London Marathon for hope and change

WCRF’s Cancer Prevention Workshop receives CPD endorsement

WCRF’s Cancer Prevention Workshop receives CPD endorsement

Our online Cancer Prevention Workshop is CPD-endorsed by the Association for Nutrition, supporting professionals on diet and lifestyle.

Riccardo’s story: From cancer survivor to London Marathon runner

A man with dark hair and a striped shirt smiles and looks to his left while holding a baby in a white babygrow who is reaching forward and smiling. They are indoors, sitting at a table with bottles and cups.

Riccardo’s story: From cancer survivor to London Marathon runner

Diagnosed with cancer at 19 and later losing his father to the disease, Riccardo is turning his experiences of survival and grief into hope through the London Marathon.

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