Let's assume for a minute that this is true (Lance gave himself cancer).
How would one begin the process of initiating cancer?
Of course we all know poor health practices are contributors, but even if you were to pinpoint a specific thing that is reputed to cause cancer, how would you know that you're be a susceptible candidate? And how do you pinpoint its location? We all know of someone who, for example, smoked like a chimney, yet lived to a ripe old age and died of something unrelated.
My wife's friend's sister just died of breast cancer at age 51. Within their family, it was assumed it was because of her nearly life-long addiction to Dr Pepper! If that is truly the case, it took YEARS for that to happen, and then for the cancer to get to a critical stage. Even if she found it early, how is there any guarantee that its management would lead to a cure?
Same thing with Lance Armstrong. If cancer is THAT easy to initiate in the body, THAT easy to manage, and THAT easy to cure, then why aren't there more "enterprising and opportunistic" people out there doing the same and capitalizing on it via success stories, law suits, etc?