The main factors that cause cancer are outside of our body. Therefore, we can prevent cancer by controlling our diet and lifestyle. Here are 7 suggestions that can prevent cancer. Modern science ('epigenetics') has shown that it is possible to change the structure of our genes by taking these precautions and that we can organize our genes against cancer. 1- No smoking: Any tobacco product increases the risk of cancer. Smoking has been shown to be associated with many cancers, not just the lung, but the mouth, throat, larynx, pancreas, bladder, cervix and kidney. Even if you do not use tobacco yourself, your risk of cancer increases due to passive smoking. If you want to stop using tobacco, consult your doctor about the methods of quitting smoking .2- Eat healthy: We are really what we eat. So, nutrition has a big role in preventing cancer. Mediterranean cuisine, supplemented with extra virgin olive oil, mixed nuts and whole wheat, is excellent. Prefer fish instead of red meat. •Avoid obesity: Eat less high-calorie foods, such as refined sugar, fat, and animal-derived proteins, and eat lighter and leaner meals. • Moderate alcohol consumption: It has been shown many times that alcohol increases the risk of breast, intestinal, lung kidney and liver cancers. 3- Use supplements: Although nutritional and nutraceutical usefulness is constantly discussed, take omega 3 and vitamin D supplements to strengthen the immune system if necessary. 4- Maintain healthy weight and be active: Maintaining healthy weight reduces the risk of various cancers such as breast, prostate, lung, intestinal and kidney cancer. Do aerobic movements for about 20-30 minutes every day. 5- Protection from the sun: Skin cancer is the most common cancer in Northern Cyprus. Avoid skin cancer by staying away from noon sun (between 10.00-16.00). To do this, stay in the shade, cover the exposed areas of your body (dressing in bright or dark colors reflects the ultraviolet ray more than pastel or pale colours), use plenty of sunscreen and stay away from colouring processes such as a solarium. 6- Get vaccinated: Protect against hepatitis B and human papillomavirus (HPV). Hepatitis B increases the risk of liver cancer. HPV is usually sexually transmitted and causes cervical and other genital cancers. Protect during sexual intercourse and if you are worried, discuss the vaccination against these infections with your doctor. 7- Be vigilant: Increase the chance of early diagnosis of cancer by regularly examining yourself for cancers such as skin, bowel, cervical and breast cancer. This is the stage when the treatment is most successful. Early detection saves lives