"It is the unqualified result of all my experience with the sick, that second only to their need of fresh air is their need of light; that, after a close room, what hurts them most is a dark room, and it is not only light but direct sun-light that they want. . . . People think that the effect is upon the spirits only. This is by no means the case. The sun is not only a painter but a sculptor."
~ Florence Nightingale, Notes On Nursing
In this quote, which I came across in Norman Doidge's wonderful book,The Brain's Way of Healing
we see both why Nightingale was a great healer and also how much we have lost in our ways of healing.
I totally recommend daily sunshine in the healing and self-care process. Also - it's free and widely available - go get some sun!