Your first name of Sietse has given you a quick, analytical mind. Moods of depression often result as well as outbursts of temper, caustic remarks, or a belligerent attitude towards everyone, especially those closest to you. Competitive sports or challenging outdoor activities could bring you pleasure and relief from pent-up frustrations. You are creative, versatile, and imaginative. In your dealings with people you place great importance in living up to one's word. However you must beware of driving yourself to exhaustion as a substitute for relaxation. You expect as much from others in return but find, either through misunderstanding or lack of principle in others, you are often let down, leaving you feeling bitter and betrayed. Also, you must guard against using indulgence as an escape. In order to gain greater congeniality in your personal associations, you need to cultivate a more relaxed manner, greater generosity, understanding, and tolerance, and, above all, you need to avoid being too outspoken and self-opinionated. Ailments could also centre in the head causing headaches, sinus problems, or defective eyesight, hearing, or teeth.