(This is the second of two columns on the benefits of sunlight.)
Most public health messages have focused on the hazards of too much sun exposure.
But there is some sunny news about the sun.
Sunlight increases the body's vitamin D supply. In seniors, vitamin D protects against osteoporosis, a disorder in which the bones become increasingly brittle.
Vitamin D also protects against cancer, heart disease, and other maladies.
But there are other benefits from a daily dose of sunlight.