The nervous symptoms of both sorts are to be allayed only by improving the general hygiene of the child and raising its resistance against infection. A sufficiency of fresh air and of sunlight, and a management which encourages independence of action in the child, are both necessary. The diet is of the first importance. It should be sufficient, and no more than sufficient, to cover the physiological needs of the child for food. The majority of these children have enormous appetites, and excess of food, and especially of carbohydrate food, plays some part in the production of the disturbance. We must guard against overfeeding, against want of air and want of exercise, and against those errors of management described in previous chapters, which produce the maximum of disturbance in this type of child. (2) A GROUP WITH MUSCULAR ATROPHY, LORDOSIS, AND POSTURAL ALBUMINURIA At an older age, in children from the fifth year onwards, a second type of physical defect associated with pronounced nervous disturbance presents itself with some frequency. The body is thin and badly nourished, and the muscular system especially poorly developed and very lax in tone. The most striking feature is the extreme lordosis, accompanied usually by a secondary and compensatory curve in the cervico-dorsal region, so that the shoulders are rounded, with the head poked forward. Viewed from in front the abdomen is seen to be prominent, overhanging the symphysis pubis, while the shoulders have receded far backwards. The scapulæ have been dragged apart, as though by the weight of the dependent arms, with eversion of their vertebral borders and lowering of the points of the shoulders. The position which they adopt is that into which the body falls when it ceases to be braced by strong muscular support. The muscular system is here so weakly developed and so toneless that the posture is determined by the bony structure and its ligamentous attachments.