Recent studies reveal a concerning trend: younger generations are developing certain cancers more frequently, potentially due to accelerated biological ageing.

Rising Cancer Cases Among Young Adults

Cases of gastrointestinal cancers and others, such as those affecting bone marrow and the uterus, are increasingly diagnosed in people aged 20 to 39. For instance, Susanna was diagnosed with bowel cancer at 28, and Andre with lung cancer at 34. These cases reflect a broader pattern observed in countries including Germany and the United States.

Understanding Biological vs. Chronological Age

Cancer has traditionally been linked to older age, with the average affected age around 69. However, researchers now highlight a widening gap between chronological age (actual years lived) and biological age (the condition of the body’s cells and organs). Biological age reflects accumulated cellular damage and can vary across different organs.

A study from Washington University School of Medicine analysed data from over 150,000 UK participants and found that people born in the 1960s and 1970s showed a growing disparity between biological and chronological age. A US cohort born in the 1990s exhibited an even larger gap, correlating with a higher risk of early-onset cancers.

Factors Behind Accelerated Ageing

Experts suggest lifestyle factors such as prolonged obesity, sedentary habits, and poor sleep quality linked to increased screen time contribute to faster biological ageing. While genetics account for about half of biological ageing, lifestyle interventions like regular exercise, balanced nutrition, sufficient sleep, and social engagement can help slow the process.

Implications for Cancer Prevention

Though determining biological age is not yet part of routine clinical practice, understanding its role in cancer risk could enhance early detection and prevention strategies. Health professionals urge younger individuals to seek medical advice if unwell and consider screening for early signs of cancer.

As biological ageing research progresses, it offers promising avenues to address the rising incidence of cancers among younger populations.