Brain tumors can be serious, but some types might be preventable. While we can’t avoid all causes—like genetics—many experts agree that healthy choices and avoiding certain risks can help protect your brain. Here’s how you can lower your chances of developing a brain tumor.
What Is a Brain Tumor?
A brain tumor is a group of abnormal cells growing in the brain. Some are benign (non-cancerous), and some are malignant (cancerous). They can affect how your brain works and may cause problems with movement, speech, or memory. According to the American Brain Tumor Association, there are over 700,000 people in the U.S. currently living with a brain tumor.
1. Be Smart About Cell Phone Use
There’s still debate over whether cell phones cause brain tumors, but health experts suggest we should be careful.
“The conclusion means that there could be some risk, and therefore we need to keep a close watch for a link between cell phones and cancer risk,” said Dr. Jonathan Samet, chair of the working group for the World Health Organization’s International Agency for Research on Cancer (IARC).
To be safe, use speakerphone or headphones to keep the phone away from your head, and avoid sleeping with it next to you.
2. Eat a Healthy Diet
What you eat plays a big role in how your cells function. A good diet can help your body fight damage that might lead to tumors.
“Antioxidants found in berries, leafy greens, and nuts help fight damage to cells that could lead to cancer,” says Dr. William Li, physician and author of Eat to Beat Disease.
Choose fruits, vegetables, whole grains, and healthy fats. Avoid processed foods and sugary snacks when you can.
3. Stay Physically Active
Regular movement helps your immune system and lowers the risk of many types of cancer. It also keeps your body at a healthy weight.
“Exercise has powerful effects on reducing cancer risk overall,” says Dr. Alpa Patel of the American Cancer Society.
Aim for at least 30 minutes of moderate activity—like walking, biking, or swimming—most days of the week.
4. Quit Smoking and Limit Alcohol
Smoking is a known cause of many cancers, and while not directly linked to all brain tumors, it can damage DNA and your immune system. Heavy alcohol use can also increase health risks.
According to the Centers for Disease Control and Prevention (CDC), smoking is the leading cause of preventable disease and death in the U.S.
Quitting smoking and limiting alcohol are two of the best things you can do for your long-term health.
5. Protect Your Head
Trauma to the brain doesn’t directly cause tumors, but it can increase the risk of long-term brain problems. Always wear helmets when biking or skating, and use seatbelts in cars. If you play contact sports, follow safety guidelines.
Also, fall-proof your home by securing rugs and using non-slip mats in the bathroom.
6. Avoid Harmful Chemicals
Some pesticides, industrial chemicals, and toxins may increase cancer risk. While studies are ongoing, it’s smart to reduce your exposure.
Choose natural cleaning products, wear protective gear when using strong chemicals, and wash your produce to remove pesticide residue.
7. Know Your Family History
Some brain tumors are linked to inherited conditions like Li-Fraumeni syndrome or neurofibromatosis. If someone in your family had a brain tumor, talk to your doctor. You may benefit from regular checkups or genetic counseling.
8. Be Aware of Symptoms and Get Checkups
Early symptoms of brain tumors can include frequent headaches, vision problems, trouble with balance, memory issues, or personality changes. Don’t ignore these signs.
Getting regular checkups and sharing any concerns with your doctor can help catch problems early—when treatment works best.
Final Thoughts
While not all brain tumors can be prevented, you can take steps to lower your risk. Eat well, move your body, protect your head, and stay away from harmful chemicals and habits. Keep your phone use smart and stay informed about your health.
As Dr. Samet reminds us, even small risks are worth watching. Taking simple, healthy steps today could help protect your brain for years to come.
