These occur in brain exhaustion and anæmia, and in nervous exhaustion. There is a feeling of pressure or weight at the back of the head or neck, rather than real pain. This is often relieved by lying down. Headache from anæmia is often associated with pallor of the face and lips, shortness of the breath, weakness, and palpitation of the heart. Rest, abundance of sleep, change of scene, out of door life, nourishing food, milk, cream, butter, eggs, meat, and iron are useful in aiding a return to health