Sleep is essential to health, and deep sleep is the most important of all for feeling rested and staying healthy. Find out how much you should get each night.
The WHO Model List of Essential Medicines (EML), published by the World Health Organization (WHO), contains the medications considered to be most effective and safe to meet the most important needs in a health system. The list is frequently used by countries to help develop their own local lists of essential medicine. As of 2016, more than 155 countries have created national lists of essential medicines based on the World Health Organization's model list. This includes countries in both the developed and developing world.