Instead of relying on hearsay as a science guy (in your case medicine..)

Here’s ChatGPT

There isn’t clear evidence that Chinese people in Malaysia specifically have a higher cancer risk compared to other ethnic groups due to genetics alone. However, cancer risk is influenced by various factors, including lifestyle, diet, environmental exposure, and genetics.

Possible Reasons for Cancer Risk Among Chinese in Malaysia:
1. Dietary Factors
• High consumption of preserved and salted foods (e.g., salted fish) has been linked to nasopharyngeal cancer.
• Chinese cuisine often includes fried and oily foods, which may contribute to higher risks of colorectal and gastric cancers.
2. Lifestyle Factors
• Higher smoking rates among Chinese men may increase lung cancer risk.
• Alcohol consumption can contribute to liver and esophageal cancers.
3. Genetic Susceptibility
• Some studies suggest that Chinese populations may have a genetic predisposition to certain cancers, such as nasopharyngeal and liver cancer.
4. Environmental Exposure
• Urban Chinese communities may be more exposed to air pollution and industrial toxins, which can increase cancer risk.
5. Healthcare-Seeking Behavior
• Some studies suggest that Chinese individuals may be more likely to undergo cancer screenings, leading to higher reported cases.

Cancer risk is complex and depends on a combination of genetic and environmental factors. Regular check-ups, a healthy diet, and lifestyle changes can help reduce cancer risks.