Our knowledge of cancer is constantly expanding. We know about over 200 different types of cancer, and we can cure a lot of them when they've been detected at an early stage.
In recent years, an opinion has formed that an overwhelming majority of cancer diseases are related to behavior, lifestyle, and exposure to carcinogenic air pollutants. Many research studies indicate risk factors that may increase cancer incidence, as opposed to defensive factors which may reduce the risk of contracting the disease, and even prevent it.
Many mistakenly believe that people are "predestined" to get cancer, and that we have no way of subduing the disease. However, today it is a known fact that some cancers can indeed be prevented.
The adoption of a healthier lifestyle can significantly improve your health and help prevent certain cancers. It has been proven that about 85% of lung cancer cases are the direct effects of smoking, hence, avoiding this hazardous habit, or terminating it, may prevent the development of the disease in smokers or those around them (passive smokers).
New research studies indicate that excess weight, consumption of high fat foods, high caloric intake, and limited physical activity, may increase the risk of contracting various cancers. It is also known that avoiding excessive or uncontrolled sun exposure may reduce the risk of contracting skin cancer.