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Rise of Early-Onset Cancer in Young Adults: Exploring the Causes and Impact

Rise of Early-Onset Cancer in Young Adults: Exploring the Causes and Impact
James Van Der Beek (Rich Fury / Getty Images)
  • PublishedNovember 7, 2024

In recent years, a surge in cancer diagnoses among young adults has captured public attention, with celebrities like James Van Der Beek and Jenna Fischer sharing their own cancer journeys.

At just 47, Van Der Beek’s diagnosis of colorectal cancer adds to a rising number of cases in younger people, challenging the traditional view that cancer is primarily a disease of older age. Research from the American Cancer Society shows that colorectal cancer, along with breast, liver, ovarian, and several other cancers, is increasingly affecting people under 50.

Experts are concerned but cautious about pinpointing the causes of this trend. Dr. John Marshall, director of The Ruesch Center for the Cure of GI Cancers at Georgetown University, notes that younger patients now make up about half of his clinic’s cases. In the past, such cases in patients under 50 were uncommon.

“Most of these people are very healthy, conscious of their diet, and without a family history of cancer,” he said.

Marshall added that these cases often come “out of the blue.”

Several potential causes are under investigation, including environmental exposures, dietary shifts, and lifestyle factors. Dr. Mohamed Abazeed from Northwestern University’s Lurie Cancer Center suggests that widespread changes to the food and water supply, coupled with rising obesity rates and increasing exposure to pollutants, could play a role. Some scientists are studying the effects of processed foods, sugary drinks, and sedentary lifestyles that have become more prevalent over recent decades.

Cancer specialists emphasize the importance of early detection. Currently, screening guidelines vary by age and family history, and routine screening for younger adults isn’t typically recommended. However, experts agree that individuals should pay attention to symptoms and seek medical advice if unusual signs arise. Dr. Marshall stresses that symptoms like rectal bleeding or persistent changes in bowel habits should not be dismissed, even in younger patients.

While cancer treatments continue to improve survival rates, younger patients often face delayed diagnoses because symptoms are sometimes misinterpreted. Dr. Emil Lou, a University of Minnesota professor, encourages patients to advocate for themselves and seek second opinions if they feel their symptoms are not being taken seriously.

Screening protocols could eventually shift if early-onset cases continue to rise, but for now, proactive health measures are considered the best line of defense.

“Healthy behaviors, including a balanced diet, regular exercise, and not smoking, can help reduce the risk of cancer,” explains Dr. Yin Cao, an epidemiologist leading research on early-onset cancers at Washington University in St. Louis.

Celebrity diagnoses have brought attention to this unsettling trend, with public figures openly sharing their health challenges. Jenna Fischer’s recent revelation of a breast cancer diagnosis, detected during routine screening, highlighted the importance of regular check-ups. Fischer urged her followers to be proactive, noting that early detection had a significant impact on her treatment outcome.

Similarly, Patrick Dempsey, known for his portrayal of a doctor on Grey’s Anatomy, recently spoke about his anxiety over cancer screenings. This trend of public advocacy by well-known figures has contributed to greater awareness and encouraged people to stay vigilant about their health.

While the underlying causes of this shift in cancer incidence remain unclear, research initiatives, such as the Cancer Research UK’s Prospect study, aim to identify risk factors for early-onset cancers. Lead researcher Dr. Cao hopes that findings from this five-year study on colorectal cancer will not only clarify risk factors but also potentially apply to other types of cancer, providing a basis for future prevention strategies.

Lifestyle modifications may offer some protection. Experts like Dr. Sarah Berry, a nutritional sciences lecturer at King’s College London, advise individuals to reduce their intake of processed foods and increase dietary fiber, which is vital for gut health. Physical activity is also highly recommended, as it has been shown to support healthy microbiome diversity, an area that is increasingly linked to cancer risk.

Despite the rising incidence of cancer among younger populations, cancer survival rates have improved significantly due to advancements in detection and treatment. In the UK, for example, survival rates for people under 50 have risen over recent decades, and mortality rates have dropped by more than half since the 1970s.

The rise in cancer cases among young adults underscores the need for awareness, vigilance, and timely medical evaluation. Experts advise anyone with persistent, unusual symptoms to consult a healthcare provider. For the general population, maintaining a balanced lifestyle with a healthy diet, regular exercise, and avoidance of known carcinogens remains essential.

With input from USA Today and the Telegraph.

Written By
Joe Yans