Lifestyle Changes That Can Help Lower Your Cancer Risk

Cancer does not have a single cause. Age, genetics, family history, infections, environmental exposures, and lifestyle factors can all play a role.

While not every cancer can be prevented, some of the factors that influence cancer risk can be changed. The choices we make every day can help reduce the risk of certain cancers and support overall health.

Prevention is not about following a perfect routine. It is about making healthier choices consistently and knowing when preventive care is important.

Stay Away From Tobacco

Tobacco is one of the most important preventable causes of cancer.

Smoking and smokeless tobacco have been linked to several types of cancer, including cancers of the lung, mouth, throat, esophagus, and bladder.

If you use tobacco, quitting is one of the most important steps you can take for your health.

And if you have tried to quit before, do not give up. Support from a healthcare professional can make quitting more manageable.

Keep Moving Regularly

Physical activity is good for more than maintaining fitness.

Regular movement can help maintain a healthy weight and is associated with a lower risk of certain cancers.

You can make activity part of your everyday routine by:

• Walking regularly.
• Taking the stairs when practical.
• Breaking up long periods of sitting.
• Cycling, swimming or dancing.
• Including strength exercises as appropriate.
• Choosing activities that you enjoy enough to continue.

For most adults, at least 150 minutes of moderate-intensity physical activity each week is a useful goal.

If you are currently inactive, start gradually rather than trying to do too much at once.

Maintain a Healthy Weight

Carrying excess body weight is associated with an increased risk of several cancers.

This does not mean that weight alone determines whether someone will develop cancer. But maintaining a healthy weight can help reduce risk.

Instead of looking for rapid weight-loss solutions, focus on sustainable habits:

• Eat balanced, nutritious meals.
• Stay physically active.
• Get adequate sleep.
• Be mindful of portion sizes.
• Limit highly processed and calorie-dense foods.

Small, sustainable changes are more likely to become long-term habits.

Build Your Diet Around Nutritious Foods

There is no single food that can prevent cancer.

Rather than searching for a “cancer-fighting” food, focus on the overall pattern of what you eat.

Try to include:

• A variety of vegetables and fruits.
• Whole grains.
• Beans, pulses and other legumes.
• Nuts and seeds.
• Appropriate sources of protein.
• A variety of minimally processed foods.

At the same time, limit highly processed foods, excess added sugars, and foods high in unhealthy fats. Limiting processed meat and moderating red meat intake may also be beneficial.

A varied diet supports overall health and can help with maintaining a healthy weight.

Be Careful With Alcohol

Alcohol consumption is linked to an increased risk of several cancers, including breast, colorectal, liver, mouth and throat cancers.

The risk generally increases with the amount consumed.

If you drink alcohol, reducing your intake can lower your risk. If you do not drink, there is no health reason to start.

Alcohol should not be viewed as a harmless part of a healthy lifestyle simply because it is consumed occasionally.

Protect Your Skin From the Sun

Sun protection is an important part of preventing skin damage and reducing the risk of skin cancer.

When spending time outdoors:

• Avoid prolonged exposure to strong midday sunlight.
• Seek shade whenever possible.
• Wear protective clothing and a broad-brimmed hat.
• Use a broad-spectrum sunscreen with SPF 30 or higher.
• Reapply sunscreen as needed, especially after sweating or swimming.

Sun protection is important year-round, not just during summer or holidays.

Pay Attention to Vaccination and Infection Prevention

Some infections are linked to an increased risk of certain cancers.

For example, persistent infection with certain types of human papillomavirus (HPV) can contribute to cervical and several other cancers. Hepatitis B and hepatitis C infections can also increase the risk of liver cancer.

Appropriate vaccination, safer health practices and timely medical care can therefore play a role in cancer prevention.

Discuss recommended vaccinations with your healthcare professional, particularly those appropriate for your age and individual health needs.

Know Your Family History

Some people have a higher cancer risk because of inherited genetic changes or a strong family history.

Tell your doctor if close relatives have had cancers such as:

• Breast cancer
• Ovarian cancer
• Colorectal cancer
• Prostate cancer
• Pancreatic cancer
• Other cancers occurring at unusually young ages

A family history does not mean that you will develop cancer. But it may help your doctor decide whether you need earlier or more frequent screening or genetic counseling.

Do Not Skip Recommended Screening

Healthy habits are important, but they do not replace cancer screening.

Some cancers can be detected earlier through recommended screening, even before symptoms appear.

Depending on your age, sex, family history, and individual risk, your doctor may recommend screening for conditions such as:

• Breast cancer
• Cervical cancer
• Colorectal cancer
• Other cancers based on individual risk

Screening recommendations are not identical for everyone, so discuss the appropriate schedule with your healthcare professional.

Small Changes Can Add Up

Cancer prevention is not about finding one perfect diet, exercise routine or supplement.

It is about reducing avoidable risks wherever possible.

Stop using tobacco. Move regularly. Maintain a healthy weight. Eat a varied diet. Limit alcohol. Protect your skin from excessive sun exposure. Stay up to date with appropriate vaccinations and screenings.

Some cancers will still occur despite healthy choices, because not every risk factor can be controlled. But healthier habits can reduce the risk of certain cancers while improving your overall health.

You cannot control every factor that influences cancer risk, but the choices you make every day can still make a meaningful difference.