An herbal extract which is effective in treating the symptoms of menopause is disclosed. The method includes checking an available capacity of a message box; and when the available capacity is less than a critical value, creating and storing a unified message, which is a unification of a plurality of messages stored in the message box, into a single message. The amplifier is adapted to be controlled by a first modulating signal for modulating the amplitude of the phase modulated signal above a predetermined amplitude value. An image is recorded for the specimen and the known background focused on the image sensor in the first position, and a specimen region and background pixels are established from the image recorded.