I'm a city girl so I love the lights and bustle of an urban neighborhood, but it seems that the city life might be detrimental to your brain. A recent study from the World Health Organization says that living in the city causes more stress and mentally exhausts your brain. This comes about because of the constant activity around you that requires your attention, from the loud conversations to the overwhelming sights. The study showed that you don't have to be living in the countryside to get the benefits — viewing bits and pieces of green would do the trick.
If you need to de-stress from work, consider going to a nearby park and taking in the green sights!