Fellow plant lovers, the cat is outta the bag. ððŠīð NASA experiments go some of the way in this theory but you need a hell of a lot of plants to do the deed in your house. Still the happy vibes more than compensate for the hype when you have oodles of plants to enjoy.
I love the sunlight on my house plants early in the morning giving me a happy and content feeling. Green leaves give me such a soothing and healing vibe.