The study of healthcare encompasses a variety of areas including health-related, behavioral, and social sciences. Specifically, many colleges offer a large variety of healthcare related programs including medicine, nursing, pharmacology, as well as health policies and public health. Open coursewares released by colleges and universities around the nation may cover courses spanning from nutrition and medicine to medical ethics. These courses are typically aimed to provide students a strong background in health related subjects at both undergraduate and graduate levels. Therefore, many open coursewares may provide more practical skills while others provide more professional development and insight.