plants
research consistently demonstrates that plants are beneficial to humans. this can be explained by biophilia - humans innate need to feel connected to nature, and that our psychological and physical health depends on being in and feeling close to nature
denmark’s university of aarhus found plants protect against mood disorders, depression, neurotic behavior, and stress-related issues. the study suggests plants help psychological restoration, by providing respite for over-stimulated minds. more importantly, the benefits of plants on mental health is correlational; the more plants we are exposed to the greater the mental health benefits