In a Berlin study, home window views that afforded a higher percentage of vegetation as well as a higher diversity of plant material were connected to lower stress levels in residents, as indicated by lower hair cortisol levels.
Honold, Jasmin, Tobia Lakes, Reinhard Beyer, and Elke van der Meer. “Restoration in urban spaces: Nature views from home, greenways, and public parks.” Environment and Behavior, 48.6 (2016): 796-825.
