The girl who suffers considerably from any of these disorders at the monthly period should be relieved from the strain of examinations, the classroom, and lessons which must be learned, although mental hygiene requires that her mind be kept active and her interests in quiet pleasures stimulated. She should not be left to introspection and morbidness or to the sickly sentimental thoughts often recommended for her. This alone would cause her to exhibit some of the so-called "phenomena" of adolescence. Many of these phenomena are abnormal and are traceable to low physical vitality and lack of strong mental interests. The menstrual period should not be attended by pain or discomfort; nor should our girls be brought up to regard it as a time of sickness. When our girls are taught that normal girls experience no indisposition at this time, they will not be resigned to pain. The high-school life of the girl below the average in physical vitality cannot be regulated to her advantage in a co-educational school. Cities should maintain girls' high schools, taught by women teachers, for all girls upon whom the stress and strain of competition with normal individuals would react unfavorably. In the majority of cases, menstrual pain in girls is due to nerve tension, anaemia and poor circulation, improper clothing, and mental attitude. The girls who experience no pain are those who have led an active out-of-door life and have never stopped playing. The character and arrangement of a girl's clothing is one of the most important matters in her whole regimen. Clothing may neutralize the beneficial effects of her otherwise hygienic habits. The long-continued even though light pressure of the corset--and it is seldom light--interferes with the free circulation of the blood. The alteration in intro-abdominal pressure is conducive to misplacements of abdominal and pelvic organs; the anterior pressure on the iliac bones, the result of the modern long hip corset, is a fruitful source of partial separation of sacro-iliac joints--the cause of many backaches. Respiration is limited, the free play of abdominal muscles is prevented, constipation is promoted, and digestion is impaired. The strain on muscles and nerves caused by high-heeled shoes is a prolific source of headache and backache and reduced efficiency. Women have no conception how greatly their susceptibility to fatigue is increased and their total efficiency reduced by their methods of dress. The pity is that the majority will not learn unless the decrees of fashion change.