“Medicine is an ever-changing science.” We all have read this on every other medical publication we came across during our lives. This brief infographic just compares the past and present of some of the medical procedures we have changed over the years in a very visual way.







![Human Brain [INFOGRAPHIC]](https://medchurn.com/wp-content/uploads/2012/11/21756_506179019400861_399159883_n.jpg)
![Epidemiology and Causes of Asthma and Allergies in America [INFOGRAPHIC]](https://medchurn.com/wp-content/uploads/2011/11/Asthma.jpg)
![Why is there a shortage of primary care physicians in the US? [INFOGRAPHIC]](https://medchurn.com/wp-content/uploads/2012/10/shortage-of-primary-care-physicians.jpg)