Ways to stay healthy are

Stay Away from Tobacco:

Tobacco use leads most commonly to diseases affecting the heart, liver and lungs and is a major risk factor for cancer particularly lung cancer, cancers of the larynx and mouth, and pancreatic cancer. If you are a smoker, make the effort to quit. If you are not a smoker, don't start. Avoid exposure to other people's smoke. 

Eat Healthy and Get Active:

Traditional diets, containing animal and plant foods farmed by nontoxic methods, are rich in factors that protect against cancer. Many of these protective factors are in the animal fats. Vegetarianism does not protect against cancer. In fact, vegetarians are particularly prone to cancers of the nervous system and reproductive organs. Nutrients like Vitamin A, C, B6, B12, B17, D, E, cholesterol, Mineral, saturated fats in whole foods are known to protect against cancer. Don't overeat, drink too much alcohol or eat too many fatty foods. Instead, eat more whole grains, cereal, bread, pasta, fresh fruit and fresh or steamed vegetables especially broccoli, cauliflower, cabbage and Brussels sprouts. Keep your intake of lean meat, skinless poultry or fish to no more than 6 ounces per day. Proper exercise can also help in reducing the chances of getting a cancer. A 30-minute walk each day is one of the simplest ways to incorporate exercise into your daily routine. 

Be safe in the Sun:

More exposure to sun rays can cause a skin cancer. So it is important to avoid getting a tan. If your skin will be exposed to the sun for more than 15 minutes, use a sunscreen with a sun protection factor (SPF) of 15 or higher. 

Other ways to protect from a cancer:

Follow your employer's policies for limiting exposure to harmful chemicals in the workplace. Always wear protective equipment when indicated, know what to do if there is a spill or accidental exposure, and report any hazardous conditions to your supervisor or safety committee representative. 

Find cancer early:

Early examination can help in treatment of cancer.If you are a woman over 20, examine your breasts for lumps or changes at least once a month. If you are a woman over 40, follow your physician's advice for mammograms. If you are a man or woman over 40, follow your physician's recommendations for digital rectal exams.