Which of the following is a typical sign of Addison's disease?

A typical sign of Addison's disease is weakness, which is primarily due to insufficient production of adrenal hormones, including cortisol and aldosterone. These hormones play a critical role in the body’s response to stress, regulation of metabolism, immune function, and balancing electrolytes. The lack of these hormones leads to fatigue and muscle weakness, which are common manifestations experienced by those with the condition.

Other signs may include low blood pressure, darkening of the skin, and increased cravings for salt, but the key aspect to note here is how weakness serves as a direct result of the hormonal deficiencies associated with Addison's disease. The energy levels tend to decrease rather than increase, appetite is often reduced rather than heightened, and weight gain is not typical as many individuals with Addison's disease experience weight loss due to insufficient hormone levels that affect metabolism.