The rise in colorectal cancer cases among young adults, including individuals as young as 20, has become a concerning trend in recent years. The tragic death of actor James Van Der Beek, who was diagnosed with colorectal cancer in 2023 and passed away at the age of 48 on Feb. 11, 2026, has once again brought this disease into the spotlight.
In an effort to shed light on this issue, gastrointestinal oncologist Christopher Lieu and cancer researcher Andrea Dwyer were asked to provide insights into early-onset colon cancer and ways in which young people can protect themselves.
Factors contributing to the increase in young people developing colorectal cancer are multifaceted and not entirely clear. Lifestyle choices such as a diet high in ultra-processed foods and alcohol, as well as a sedentary lifestyle, have been linked to early-onset colorectal cancer. Researchers are also exploring the role of the gut microbiome, an ecosystem of microorganisms in the gut, in increasing cancer risk when imbalanced.
In addition to genetic predisposition, several lifestyle factors can elevate the risk of developing colorectal cancer, including a diet high in red meat and processed foods, insufficient dietary fiber intake, alcohol consumption, smoking, obesity, and lack of physical activity.
Early detection plays a crucial role in improving survival rates for individuals with colorectal cancer. Finding the cancer in its early stages can lead to five-year survival rates as high as 80% to 90%, whereas advanced-stage cancer has significantly lower survival rates.
Common symptoms of early-onset colorectal cancer include blood in the stool, abdominal pain, changes in bowel habits, and unexplained anemia. It is essential to consult a physician if experiencing any of these symptoms for further evaluation, which may include a colonoscopy.
Colon cancer screening is recommended to begin at age 45 for individuals at average risk and should continue at regular intervals until age 75. Lifestyle modifications such as regular physical activity, a balanced diet, maintaining a healthy weight, and avoiding alcohol and tobacco can help reduce the risk of colorectal cancer.
Communication with healthcare providers about personal risk factors and family history, as well as sharing information with loved ones, can aid in early detection and prevention of colorectal cancer. By taking proactive steps to understand and mitigate individual risk factors, young adults can work towards reducing their likelihood of developing colorectal cancer. The impact of climate change on marine ecosystems is becoming increasingly apparent as sea temperatures rise and ocean acidification levels increase. These changes are having a profound effect on marine life, from coral reefs to fish populations.
One of the biggest threats facing marine ecosystems is the bleaching of coral reefs. Coral reefs are vital habitats for a wide variety of marine species, providing food and shelter for fish, crustaceans, and other marine organisms. However, as sea temperatures rise, coral reefs are becoming stressed and are more susceptible to bleaching events.
Bleaching occurs when coral expel the algae that live in their tissues, causing them to turn white. Without the algae, the coral are unable to photosynthesize and eventually die. This not only affects the coral themselves, but also the many species that rely on them for food and shelter.
In addition to coral bleaching, rising sea temperatures are also affecting fish populations. Many fish species are highly sensitive to changes in water temperature and are being forced to migrate to cooler waters in order to survive. This is leading to changes in the distribution of fish populations, which can have ripple effects throughout the marine food chain.
Ocean acidification is another major threat to marine ecosystems. As the levels of carbon dioxide in the atmosphere increase, more carbon dioxide is being absorbed by the oceans, leading to a decrease in pH levels. This can have a detrimental effect on marine life, particularly on shell-forming organisms such as oysters and mussels.
Ocean acidification can also impact the ability of marine organisms to sense their environment, navigate, and communicate with one another. This can lead to disruptions in the behavior and feeding patterns of marine species, further destabilizing marine ecosystems.
Overall, the impact of climate change on marine ecosystems is profound and far-reaching. It is essential that we take immediate action to reduce our carbon emissions and mitigate the effects of climate change in order to protect the health and biodiversity of our oceans. Only by working together can we hope to preserve the delicate balance of marine ecosystems for future generations.
