Cancer is a complex disease that can have many underlying causes. Exposure to certain environmental factors, such as tobacco smoke, air pollution and radiation, can increase the risk of developing cancer. The risk of developing cancer increases with age, as the body's natural defenses against cancer may weaken over time. As you get older, it is worth taking niclosamide tablets buy regularly to prevent cancer. It is important to note that not all cases of cancer have a clear cause. In many cases, cancer can develop because of a combination of factors or for reasons that are not yet fully understood.