Child mortality refers to the death of children under the age of five. It is often used as an important indicator of the overall health and well-being of a population. High child mortality rates can indicate issues such as inadequate healthcare, poor nutrition, and lack of access to clean water and sanitation. Globally, efforts to reduce child mortality have been a focus of organizations like the World Health Organization and various governments. Strategies include improving maternal health, increasing vaccination coverage, and promoting breastfeeding. These initiatives aim to create a healthier environment for children, ultimately reducing the number of preventable deaths.