World Health Day is observed annually on April 7 to mark the founding day of the World Health Organization (WHO) in 1948 for public health worldwide. The Day raises awareness about global health issues and highlights the importance of preventive care, healthy lifestyles, and equal access to healthcare for all.On World Health Day 2026, the WHO urged people to renew their commitment to working together and supporting science as the twin engines driving better health.“Science is one of humanity’s most powerful tools for protecting and improving health,” said Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization. “People in every country live longer and healthier lives on average today than their ancestors did, thanks to the power of science. Vaccines, penicillin, germ theory, MRI machines, and the mapping of the human genome are just some of the achievements that science has delivered that have saved lives and transformed health for billions of people.” World Health Day 2026: History World Health Day commemorates the formal establishment of the WHO in 1948. The creation of an independent, international health body was proposed by Brazil and China in 1945.The WHO Constitution, signed in 1946 by 61 nations, officially came into force on April 7, 1948. In the last 78 years of its existence, the WHO has directed and coordinated the world’s response to health emergencies such as : Severe Acute Respiratory Syndrome (SARS)Ebola outbreakCOVID-19 pandemicmPox In addition, it has also led global efforts against communicable diseases (like malaria, HIV, polio) and works on non-communicable diseases (e.g., cancer, diabetes). The WHO works towards universal health coverage, with a focus on primary health care improving access to essential medicines and health productstraining the health workforce and advising on labour policies improving monitoring, data, and information.World Health Day 2026: Theme World Health Day 2026 will be observed under the theme “Together for health. Stand with science.” The theme highlights the role of the WHO in promoting public health, which has led to improvements in the global maternal mortality rate, falling by more than 40 percent since 2000, and a reduction of over 50 percent in deaths among children under five. The global health body lauded the advances in technology and scientific knowledge and skills, due to which the once-life-threatening health challenges – such as elevated blood pressure, cancer diagnoses, or HIV infection – have turned into manageable health issues. The WHO stated that science was behind every health progress, which led to improvements in global health and lives. This includes the development of anesthesia safer medicines and affordable vaccination screening technologies, such as electronic blood pressure monitors and mammography tools. The WHO emphasized that science must continue to guide health decision-making at all levels. WHO and its partners generate and translate evidence across a wide range of health priorities, from infectious diseases and chronic conditions to mental health, nutrition , and environmental risks, supporting countries to deliver effective, equitable care.