How Difficult will it be to prevent cancer in the early stages ?

Question: How Difficult will it be to prevent cancer in the early stages ?
- Keywords:
  cancer,
  difficult,
  prevent
Asked by reganmurphy to Sarah on 17 Mar 2011 in Categories: Your Research.
- Sarah Thomas answered on 17 Mar 2011:
  
  Hi there,
  
  It is much MUCH easier to treat cancer in the early stages! The problem with cancer is that it can spread to other places in your body, for example, vital organs, and then stop it from working properly. The other problem is that is can make the person really weak, because the tumours steal energy from the rest of the body to go. So if you catch it early:
  
  1) the patient is stronger therefore they can cope with chemo better.
  2) the cancer has not spread so the doctors can target it more easily.

Question: How Difficult will it be to prevent cancer in the early stages ?