Health is a state of complete physical mental and social well-being and not just the absence of disease or infirmity. Medicine is the science and practice of the diagnosis treatment and prevention of disease. It encompasses a wide range of healthcare practices evolved to maintain and restore health by the prevention and treatment of illness. Medicine has been practiced for thousands of years with the first recorded accounts dating back to ancient civilizations in Egypt Greece and Rome. Today modern medicine continues to evolve and develop with new treatments and technologies being discovered and developed all the time. However despite the many advances in healthcare there are still many challenges and issues that need to be addressed such as access to healthcare the rising cost of treatment and the growing burden of chronic diseases.