Institutions provide structure and support for a society. Here, we look specifically at government and economy and health and medicine. More free lessons at: www.khanacademy.org/video?v=L72h7bk6HZs By: Sydney Brown Visit us (www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (www.khanacademy.org/science/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video.