The Department of Health and Human Services (HHS) is the federal agency responsible for overseeing sports in the United States. HHS works to promote physical activity and healthy lifestyles, and to ensure that sports are safe and accessible to all Americans.

Government grants are the primary source of funding for sports science research in the United States. The National Institutes of Health (NIH) and the Centers for Disease Control and Prevention (CDC) are the two largest government agencies that provide funding for sports science research.

Title IX of the Education Amendments of 1972 is a federal law that prohibits discrimination on the basis of sex in federally funded education programs, including sports. Title IX has been credited with increasing opportunities for women in sports and with helping to level the playing field between male and female athletes.

The World Anti-Doping Agency (WADA) is an international organization that promotes fair play and ethical practices in sports. WADA develops and enforces anti-doping rules and regulations, conducts research on doping methods and substances, and educates athletes and coaches about the dangers of doping.

Nutritional supplementation is not a type of doping. Doping refers to the use of banned substances or methods to enhance athletic performance. Nutritional supplements are not banned and are often used by athletes to improve their performance.

The media plays an important role in sports science and public policy by informing the public about sports science research, influencing public opinion on sports-related issues, and holding sports organizations and athletes accountable.

Sports science research can be used to inform public policy by developing evidence-based policies, identifying trends and patterns in sports participation, and evaluating the effectiveness of sports programs.

Sports science and public policy face a number of challenges, including lack of funding, lack of coordination between different stakeholders, and rapidly changing technology.

Sports science and public policy have the potential to improve the health and well-being of athletes, promote physical activity and healthy lifestyles, and reduce the risk of injury in sports.

Sports science and public policy can be used to address a variety of social issues, including promoting gender equality in sports, addressing racism and discrimination in sports, and promoting social inclusion through sports.