Addison is a name that can refer to both a given name and a surname. As a given name, it is often used for both boys and girls, though it has become more popular as a girl's name in recent years. The name has English origins and means "son of Adam." In a medical context, Addison's disease is a disorder that occurs when the adrenal glands do not produce enough hormones. This condition can lead to symptoms such as fatigue, weight loss, and low blood pressure. It is named after the British physician Thomas Addison, who first described the disease in the 19th century.