Many young children get cancer, but older people seem more susceptible to cancer because the immune system is weaker. everyone has cancer cells but most people keep them under control because they live a healthy lifestyle or they are still strong.
a very strong solution is to attack the tumor when it does appear out of control, such as by attacking the new blood vessels that all cancer tumors have, antineogenesis. this is the principle of one the new cancer drugs that came out recently, Avastin, yet for some reason this medicine just flooped out and became a failure. we know the cancer industry is one the biggest there is.