While more research is needed to fully understand why colorectal cancer is increasingly affecting younger people, many experts believe dietary habits are a primary cause.
“The rise in early-onset colorectal cancer appeared to originate in Western societies and lifestyles,” explained Dr. Marios Giannakis, an oncologist at the Dana-Farber Gastrointestinal Cancer Center. “What we’re seeing globally now reflects the spread of these lifestyles.”
Lifestyle factors such as smoking and lack of exercise are also contributing to the trend.
“When industrialised environments limit opportunities for physical activity, exercise levels naturally decrease compared to pre-industrial settings where people needed to work and grow their own food,” said study author Hyuna Sung.
Sung added, “Economic development brings built environments and food systems that contribute to these changes, which we believe are partially responsible for the rise in colorectal cancer.”
How can you lower your risk?
Adopting a healthier diet and making positive lifestyle changes are some of the most effective ways to reduce your risk.
“I don’t think there’s a need to panic,” said Sung. “This is an opportunity to learn how we can improve our overall health.
“It’s not just about cancer. Adopting healthier behaviors will also lower your risk of other conditions like hypertension, diabetes, and obesity in the future.”
Symptoms to watch for
The NHS highlights several warning signs of colorectal cancer:
- Changes in bowel habits, such as looser stools or constipation
- Blood in your stool
- Feeling the urge to use the toilet more frequently
- Unexplained weight loss
- Persistent fatigue despite not engaging in strenuous activities
If you experience any of these symptoms for three weeks or longer, it’s important to see a doctor.
