Today Scientific world don't recognize the Life energy (Prana) as a basic elemental energy which is fundamental to various possibilities of life creation and maintenance.
The present medical system treats the person in fragmented approach and don't see holistic (as one life, one blood and one system approach). Moreover the medicines are based on mere chemical and their primary action, without taking the consideration of reaction of the body to the chemical.
Technological inventions are so rapid, without seeing the counter affects on the living organisms as they never understood the ingredients of creation and functioning. Just mechanistic view point of the world is the biggest errors human are committing.