IOP Science, shows that having green areas such as trees and landscaping in a neighborhood positively correlate with a “joyful” factor.
Other things will also keep your environment positive.It’s no secret that darkness and depression go hand in hand. There have been numerous studies done linking these two things.
Always being in a dark environment can alter your mood. You won’t be as happy and positive as you could be.If you work in a dark environment, you can’t do anything about that.
Read more on powerofpositivity.com