The World Health Organization defines violence as "the intentional use of physical force or power, threatened or actual, against oneself, another person, or against a group or community, which either results in or has a high likelihood of resulting in injury, death, psychological harm, maldevelopment, or deprivation", but acknowledges that the inclusion of "the use of power" in its definition expands on the conventional meaning of the word. This definition associates intentionality with the committing of the act itself, irrespective of the outcome it produces. However, generally, anything that is turbulent or excited in an injurious, damaging or destructive way, or presenting risk accordingly, may be described as violent or as occurring violently, even if not signifying violence (by a person and against a person).Globally, violence takes the lives of more than 1.6 million people annually. Just over 50% due to suicide, some 35% due to homicide, and just over 12% as a direct result of war or some other form of conflict. In Africa, out of every 100,000 people, each year an estimated 60.9 die a violent death. Statistics show that gunfire kills ten children a day in the United States. Corlin, past president of the American Medical Association said: "The United States leads the world—in the rate at which its children die from firearms." He concluded: "Gun violence is a threat to the public health of our country." For each single death due to violence, there are dozens of hospitalizations, hundreds of emergency department visits, and thousands of doctors' appointments. Furthermore, violence often has lifelong consequences for victims' physical and mental health and social functioning and can slow economic and social development.Violence in many forms is preventable. Evidence shows strong relationships between levels of violence and potentially modifiable factors such as concentrated poverty, income and gender inequality, the harmful use of alcohol, and the absence of safe, stable, and nurturing relationships between children and parents. Scientific research shows that strategies addressing the underlying causes of violence can be effective in preventing violence.