National Mammography Day is observed on the third Friday in October as part of Breast Cancer Awareness Month, serving as a reminder for women aged 40 and older, or those with certain risk factors, to schedule a mammogram. This day highlights the importance of regular mammograms in the early detection and prevention of breast cancer. It was established by President Bill Clinton in 1993 and has been recognized annually since then. Various organizations, including the CDC and the Breast Cancer Foundation, participate in promoting awareness and education about breast health. Typical activities include scheduling mammograms, learning about the mammography process, performing breast self-exams, and raising awareness about breast cancer risks and symptoms. The day emphasizes that breast cancer can affect both women and men, and early detection significantly increases treatment success rates.