Forehead frown lines and "crows feet" wrinkles around the eyes are due, in large part, to overactivity of facial muscles. Many patients smile, frown, squint, or raise their eyebrows while they are talking or concentrating, often without realizing they are over-activating their facial muscles. Over time, muscle memory can develop. The constant activity and use of the muscles of facial expression of the forhead, brow, and around the eyes can result in deep creases and wrinkles. By putting these over-used muscles at rest, BOTOX treatments can significantly reduce or eliminate many of these creases and wrinkles.