People standing around mannequin "Little Anne" cast their shadows, during a cardiopulmonary resuscitation (CPR) course conducted by the Greek Emergency Medical Service at a main square of Athens December 19, 2013. According to the World Health Organisation (WHO), an estimated 17 million people die of cardiovascular diseases, particularly heart attacks and strokes, every year. REUTERS/Yorgos Karahalis (GREECE - Tags: SOCIETY HEALTH)