“Facebuilding”, or training of the face, helps the skin to become more elastic and aligned. It also improves blood flow and lymph flow, removes puffiness, and makes facial features more expressive. Doctors conducted a 20-week experiment in which 16 women from ages 40 to 65 years old participated. During this time, all participants did exercises for the muscles of their forehead, eyebrows, eyes, mouth, and neck. The experiment showed that such exercises actually improved the skin on their face and reduced visible signs of aging.