What we all know intuitively (or in our bones) — that being in nature is healing — is now being recognized by modern medicine. The concept was popularized by pastoral counselor Howard Clinebell in his 1996 book Ecotherapy. It has also been referred to as green therapy, nature therapy, or earth-centered therapy.
Hippocrates, the “father of modern medicine” said simply:
Nature is the healer of disease.
This great video says it with humor (which is another great healer).