Moderate sunlight exposure can also be of benefit in fighting certain skin disorders, such as fungal infections, psoriasis, acne, and eczema.
Sunlight can lower our vital signs—our respiratory rate, heart rate and blood pressure. Not only does it increase the oxygen content in the blood, it plays a role in decreasing blood cholesterol and also creates Vitamin D. Sunlight also enhances the immune system which helps us fight diseases of all kinds. The production of many of the body hormones that regulate our bodily functions is dependent upon sunlight.
Education in health principles was never more needed than now. Notwithstanding the wonderful progress in so many lines relating to the comforts and conveniences of life, even to sanitary matters and to the treatment of disease, the decline in physical vigor and power of endurance is alarming. It demands the attention of all who have at heart the well-being of their fellow men.
There seems to be conclusive evidence that sunlight produces a metabolic effect in the body that is very similar to physical training. Tuberculosis patients being treated by sunbathing have been observed to have well-developed muscles with very little fat, even though they have not exercised for months.