There are several reasons for the rising costs of healthcare.
Medical practice initiates new diseases, which is called iatrogenesis.
This phenomenon is discussed also in my other presentations:
The fallacy of personalized medicine.
Overdiagnosis and needless treatment.
The downfall of anti-angiogenic therapy in cancer.
The fallacy of breast cancer chemoprevention.
http://www.what-is-cancer.com/englishVideos/englishVideoFrame.html