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Genetics and Cancer - The Basics

Unlocking the Genetic Code: Understanding Cancer Risk and Prevention


Cancer—it’s a word that strikes fear into many of us. But thanks to advances in genetic science, we’re learning more than ever about how cancer works, why it happens, and, most importantly, how to prevent it.


How Do Genetics Influence Cancer? At its core, cancer is caused by genetic mutations. Some of these mutations are inherited, meaning they’re passed down from your parents. These are known as hereditary mutations and account for about 5-10% of all cancers. Others, known as acquired mutations, happen throughout your life due to factors like lifestyle choices, environmental exposures, or even just aging.


Why Should You Care About Genetic Testing? Genetic testing can help you understand your cancer risk. For example, tests can reveal mutations in genes like BRCA1 and BRCA2, which are linked to breast and ovarian cancers. By knowing your genetic predisposition, you can make proactive choices about screening, lifestyle changes, or even preventive treatments.


The Basics of Cancer PreventionWhile we can’t change our DNA, we can reduce our risk:


  1. Stay Active: Regular exercise helps regulate hormones that can fuel cancer growth.


  2. Eat Smart: Focus on a balanced diet rich in fruits, vegetables, and whole grains.


  3. Avoid Carcinogens: Limit exposure to harmful chemicals, tobacco, and excessive UV radiation.


  4. Get Screened: Early detection saves lives. Genetic testing is just one piece of the puzzle—regular screenings are key.


Take the First Step! Learning about your genetics is like getting a personalized roadmap to better health. Whether you’re considering genetic testing or want to learn more about preventive strategies, knowledge is power.


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