“You are my sunshine, my only sunshine
you make me happy when skies are grey”
… sang Jonathan Edwards in 1971. And he was right, sunshine does make us happy. When we think of sunshine we think of long carefree days lying on a beach, having a picnic in a park or merely waking up to golden rays of light seeping in between the curtains. Sunshine is good for us both psychologically and physically. For example, sunlight is an important source of vitamin D, a crucial vitamin that keeps bones healthy and teeth strong. Of course, like everything there is a middle ground between too much sunshine, too little sunshine and just the right amount.