The thinnest body part is the eyelids. The skin on the eyelids is only 0.6 millimeters thick, compared to 4 millimeters thick on the back. This thinness allows for a greater range of motion and flexibility in the eyelids, which is crucial for blinking and other eye movements.
The skin is the largest and heaviest organ of the body and is made up of three main layers: the epidermis, dermis, and hypodermis. The thickness of the skin varies depending on the body part, with the thinnest skin found on the eyelids and the thickest skin found on the palms and soles of the feet.