Sunshine
Sources:
Papers On Health
Is a most valuable aid to health, acting as a physical and
mental tonic. The sunbath, for either portions of the body at a time,
or for the whole body, will be found very beneficial to nervous
sufferers, and also to those having a tendency to certain skin
diseases. Its tonic effect is very noticeable on the hair, giving it
better growth and richer colour. Sunlight should be admitted freely
into bedrooms and sitting-rooms, for it is hostile to the growth of
many of those microbes which cause disease.