
What the window is doing
For nine years at a hospital in Pennsylvania, two groups of patients recovered from the same surgery in the same building. They were matched on age, sex, weight, and prior health. They had the same procedure, the same nursing staff, the same protocol. The only difference between the groups was an accident of room assignment: half of them had a window that looked out at a small stand of deciduous trees, and half had a window that faced a brick wall.
















