I hate to say this (& will be downvoted), but our obsession with reductionist thinking blinds us to the actual causes of cancer. Just like unit tests blind the programmer from how the system works. From a holistic perspective, cancer is caused by an acidic, low oxygen environment or "stagnant energy". Emotional well being, energy work, & massage therapy has also been anecdotally reported by practitioners to cause can…
By what process does acid/low oxygen cause cancer in your theory? By what sequence of events? Talk me through it. Aside, the proposed 'cure' of anecdotal relaxing and energy therapies is heavily affected by survivor bias. And without consistent repeatability is unusable in a professional medical environment.
Think of this like a craftsman. Just like programmers don't use the scientific method to adopt & evolve practices.
It's a cultural phenomena that utilizes anecdotal accounts to advance the practice.
Advantages & Disadvantages. It seems more useful in environments with many variables, like life.