One of the worlds largest cause of deaths, is cancer. Cancer can be passed down genetically by your Father of Mother. There are a lot of ways to prevent Cancer from happening, such as maintaining a healthy diet including fruit and vegetables, don't smoke, don't drink as much alcohol and excersise regularly. There are a lot of different types of Cancer and most of them cannot be cured. Eating a lot of Red meat also isn't good for you because all of them have a certain substance which can increase the chance of cancer. Cancers can start by tumours then becoming Cancer. Don't worry, not all tumours are dangerous.
