National Sarcoidosis Day is observed globally on April 30, focusing on raising awareness about sarcoidosis, a chronic disease that primarily affects the lungs. Activities typically include volunteering for events and educating the public about the disease's symptoms and management. Approximately 70% of those affected by sarcoidosis are aged between 20 and 40, with women being more likely to develop the condition. The day aims to inform people about the disease, which has no cure and can lead to various complications. The symbol of a snowflake is used to represent the symptoms of sarcoidosis, enhancing awareness efforts across the United States and beyond.