👉 Boyd's, also known as the "Boyd-Colell syndrome," is a rare genetic disorder that affects the development of the adrenal glands and can lead to severe symptoms such as low blood pressure, fatigue, and hyperpigmentation in the skin. It is caused by mutations in the gene encoding the adrenal gland hormone cortisol, leading to overproduction of cortisol, which can cause symptoms like high blood pressure and weight gain.