The meaning behind the culture of biomedicine is the culture more in western society that accepts biomedicine as absolute fact. It is something that is logical and can be explained through text books as well as experiments. The reason it is viewed as fact is because it takes into account the best knowledge we have available at the time along with repeatable results that can justify the claims made. This is the main reason biomedicine is excepted without any question in western civilization.
I think the basis of dichotomy’s came from peoples quest for knowledge. If there is a question and someone gives an answer, is the answer right or wrong? Even when you talk about religion, no matter what one you talk about there is almost always a good and an evil side. Or another example is you cannot have the light (good) without the dark (evil). Showing that dichotomy’s are two sides of the same coin, but in this people seem to refuse to believe that there are shades of grey in between. This makes everything simpler for people to understand but portrays everything as either black or white which more times than not, is not the case.
I think that the healthy sick dichotomy is accepted in western society as truth because people generally think of themselves in one of those terms, but never both and never neither of them. For this reason people think you must be either healthy or sick, but are you healthy if you feel fine but are unaware of the cancer growing in your body? What about the person that feels fine and is active but has a large aneurysm growing in their brain? Thinking about it in these terms makes it harder to tell the difference. Showing that healthy verses sick is just a mental state until he know what is really going on within our own bodies.