Are You Prone To Cancer? Check Expert Opinion On How Genes Play a Role

Are You Prone To Cancer? That question now carries more weight than ever as science uncovers how family genes and everyday habits silently shape cancer risk. While some inherit genetic mutations, others unknowingly fuel their chances through lifestyle choices. 

A recent post by Dr. Alok Chopra on Instagram sparked public interest by explaining how both biology and behaviour matter. His message was clear: genes might load the gun, but lifestyle often pulls the trigger. Understanding this balance is key to preventing cancer before it strikes. 

Inherited Risk: Can Cancer Genes Pass Through Families?

Inherited mutations do increase risk, but actionable steps can reduce that threat. Dr. Alok Chopra posted on Instagram that genes set a predisposition, but lifestyle choices often shape the outcome for individuals facing cancer risks, prompting timely medical screening recommendations.

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A post shared by Alok Chopra (@dralokchopra)

1. Breast & Ovarian Cancer: Family history when a mother, sister, or aunt faced diagnosis before age fifty. Recommended tests include BRCA1 and BRCA2 genetic analysis, plus regular mammograms and ultrasound scans. Begin screenings between thirty‑five and forty years old.
2. Colon Cancer: Family history when a parent or sibling received a colon cancer diagnosis. Recommended tests include colonoscopy and FIT stool assessment. Start these evaluations forty years or ten years before the earliest family diagnosis.
3. Prostate Cancer: Family history when a father or brother had prostate cancer. Recommended tests include a PSA blood test and a digital rectal exam. Begin testing between forty and forty‑five years old.
4. Pancreatic Cancer: Risk if two or more relatives had pancreatic cancer. Recommended assessments include MRI with MRCP and endoscopic ultrasound. Start between forty and forty‑five years old.
5. Skin Cancer (Melanoma): Risk if any close relative developed melanoma. The recommended exam is a full‑body skin check by a dermatologist. Beginners are between thirty and thirty‑five years old.
6. Stomach & GI Cancer: Risk when an immediate relative faced early gastrointestinal cancer. Recommended tests include upper endoscopy and H. pylori screening. Start at the age of forty years. 

Gene Testing: When Should You Get Screened Early?

Genetic screening can catch hereditary cancer markers before symptoms appear. Experts recommend discussing family history with a specialist to determine which genes to test. For BRCA mutations, testing can start around age thirty under certain circumstances. Lynch syndrome screening often begins in the early thirties if relatives have had colon or endometrial cancer. 

Always consult a genetic counsellor to tailor tests based on your family’s cancer patterns. Early testing does not guarantee prevention, but it informs screening frequency and lifestyle changes to reduce overall cancer risk. 

Lifestyle vs. DNA: Which Has Greater Cancer Impact?

While inherited genes establish baseline cancer susceptibility, up to 40% of cases link directly to lifestyle factors. Diet, exercise, tobacco use, and sun exposure can either amplify or mitigate genetic risk. Dr. Chopra stresses that quitting smoking or adopting a balanced diet often offsets some inherited dangers. 

Regular physical activity lowers risk across multiple cancer types, even for those with high‑risk genes. Ultimately, combining genetic awareness with healthy habits creates the strongest defence, giving individuals the tools to control their cancer risk regardless of DNA.

Genetic inheritance and daily habits both influence cancer risk. Early testing and lifestyle changes empower proactive choices. Consult experts, schedule appropriate screenings, and adopt healthy routines to manage your lifelong cancer risk.