👉 Lethargy, also known as slumbering or inactivity, is a state of low energy and reduced activity that can occur when one's body is not receiving enough physical or mental stimulation. It is often characterized by a lack of concentration, decreased motivation, slowed down reactions, and difficulty with tasks that require focus and attention. Lethargy can be caused by a variety of factors, including sleep deprivation, insufficient exercise, poor nutrition, stress, or simply being in the wrong mood