Air pollution kills an estimated seven million people worldwide every year. WHO data shows that 9 out of 10 people breathe air containing high levels of pollutants. WHO is working with countries to monitor air pollution and improve air quality.
Countries overview * In 2025, the United Nations Secretary General, as depository of the WHO Constitution, circulated a notification from the United States of America of its intention to withdraw from the World Health Organization, with a stated effective date of 22 January 2026. This notification is pending consideration by WHO’s governing bodies. References to the United States of America ...
WHO fact sheet on autism with sections on epidemiology, causes, assessment and care, human rights and WHO's work in this area.
WHO fact sheet on depression, providing information on prevalence, symptoms, prevention and contributing factors, diagnosis and treatment, and WHO's work in the area.
WHO fact sheet on maternal mortality with key facts and providing information on MDG 4, where deaths occur, causes, lack of care and WHO response.
WHO fact sheet on blindness and visual impairment providing key facts, definitions, causes, who is at risk, global and WHO response.
ChatGPT, which is a tool developed by OpenAI, aims to redefine human-technology interaction through advanced artificial intelligence designed to assist you with a wide variety of tasks. Whether you need help answering complex questions, writing text, learning new concepts, or simply engaging in a stimulating conversation, this app provides a versatile tool that can easily adapt to your needs. With a modern and functional interface, ChatGPT is perfect for anyone who wants to have a secure ...