It’s renovation season! As you ponder your re-design options keep the benefits of using natural materials – wood, stone, linen and cotton, etc. – in mind. Working natural materials into spaces is an important tenet of biophilic design. Particularly positive results ensue from using materials—such as copper and leather—that develop a patina over time, with biophilic design, showing that you’ve aged gracefully is definitely a plus. For a refresher on all the mental (related to both mood and performance) and…