Question: Why is cancer so serious when it comes to human health in general?

Mariam Orme answered on 21 Jun 2010:

Cancer is so serious because although you can reduce your risk of getting cancer by having a healthy lifestyle, anyone can be unlucky and get it.
When you have cancer, if it’s not treated the cancer cells will usually keep on growing and dividing and eventually they will cause damage to the organs of your body; eventually this can kill you.