Research shows that spending time with nature has extensive mental health benefits

Intuitively, many people understand nature's role in human health. Whether it is walking on the beach, swimming in the ocean, or hiking in the mountains, interaction with nature seems to have a positive effect on humans. The sounds, smells, and sights of the great outdoors...

http://www.naturalnews.com/037693_nature_deficiency_mental_health_benefits.html