Jakarta, the diagnosis of cancer can be a shocking event, but also can be prevented. In fact, half of all cancer deaths can be avoided by adopting a healthy lifestyle. One of the weapons against cancer is the most potent sport. Because exercise regularly can maintain your weight, improve blood pressure, and mental acuity. Exercise also can stop some types of diseases. Several studies have shown that exercise and physical activity associated with a decreased risk of some types of cancer, especially breast cancer and colon cancer. "It is never too late to start a fitness program. The good news, physical exercise is not the problem started at any age, then you will see the benefits of exercise regardless of your age," said Dr.. Priscilla Furth, professor of oncology at Georgetown University Medical Center as reported by myhealthnewsdaily, Wednesday (01/11/2012). Here are the seven cancers that have been studied can be stopped development through exercise: 1. Endometrial cancer Enometrium cancer is cancer arising in the lining of the uterus. Research by Yale School of Public Health confirms that women who exercised at least 150 minutes a week had a risk 34% lower risk of endometrial cancer than women who did not exercise. The researchers also found that women with a body mass index (BMI) under 25 have a 73% lower risk of esophageal cancer, compared with women who did not exercise with a BMI above 25. People with a BMI over 25 is considered overweight. 2. Colorectal Cancer According to a study published British Medical Journal, people who implement healthy lifestyle habits, like exercising more than 30 minutes each day, was able to reduce the risk of colorectal cancer. In fact, 23% of colorectal cancers could be prevented in study participants who implement healthy lifestyle, according to researchers from the Institute of Cancer Epidemiology in Copenhagen. The study was based on a survey of 55 489 men and women aged 50-64 years who were followed for almost ten years. 3. Prostate Cancer Although some existing research is not quite convincing, some findings suggest a link between physical activity with reduced risk of malignant prostate cancer. Men who regularly exercise have a lower risk of prostate cancer compared with people who did not exercise regularly, according to a 2006 study published in the International Journal of Cancer. A 2005 study in China, published in European Journal of Epidemiology suggests that exercise in early stages of being able to protect against prostate cancer. "Physical exercise did not focus on how much was done, but how intensely do it. You can do it while gardening, digging, or walk slowly to raise the heart rate," said Dr.. Furth. 4. Breast Cancer Women who have a family history of breast cancer can reduce the risk by doing 20 minutes of physical activity at least five times a week and diiiringi by maintaining a healthy lifestyle, according to a study published in the journal Breast Cancer Research. In fact, women who had menopause and getting used to exercising in moderate to severe level of changing levels of hormones and proteins that impact on breast cancer risk reduction, according to a study published in the Journal of Clinical Oncology. Some findings indicate that starting an exercise program since adolescence can delay the onset of breast cancer in women who mutated in his genes. 5. Lung cancer Exercise also can reduce the risk of lung cancer for smokers or former smokers. University of Minnesota researchers gave questionnaires to 36,929 women who will not get cancer in Iowa, and monitor the participants for 16 years. The study, published in the journal Cancer Epidemiology Biomarkers & Prevention in 2006 found that women who do a lot of exercise, less likely to develop lung cancer than women who rarely exercise. Another study in 2003 which was published in the American Journal of Epidemiology suggests that men and women who exercise in the moderate and strong level decreased lung cancer, especially those who have low body index or middle and smokers. 6. Ovarian Cancer Although additional research is still needed, some evidence suggests a relationship between exercise and reduced risk of epithelial ovarian cancer (cancer that is found in the ovarian surface cells). Women who engage in high-intensity exercise decreased at most risk of invasive ovarian cancer compared with women who do not perform regular physical activity, according to a study published in the journal Cancer Causes & Control. Furth recommend to anyone starting an exercise program, so you should start at low intensity and gradually increased to moderate levels. The goal is to do cardiovascular exercise actually increases heart rate and sweat. 7. Gastric cancer People who reported physical activity in its early stages is to have a reduced risk of gastric cancer seebsar 50%, according to a study in 2008 which was published in the journal Cancer Epidemiology Biomarkers and Prevention. People who perform heavy physical activity throughout life also had a reduced risk of stomach cancer, according to a 2007 study published European Journal of Cancer. Researchers from the Cancer Care Ontario, Canada found a 20-40% reduced risk of stomach cancer in people who perform strenuous exercise more than three times a week, compared with those who exercised less than once a month.