I'm sorry but this is nonsense.
That applies to everything pre-modern medicine?
If you are a dedicated rationalist I challenge you to at least read the first few chapters and then consider that , with a small chance, we as humans might not know everything about the human body and how it functions through the lense of western medicine.
Edit: added link to Growth Control Theory paper
[1]http://www.sciencedirect.com/science/article/pii/S0024320500...