Dark circles have become one of the most common problems of the fast paced life we lead today. 9 out of 10 people have dark circles or bags under their eyes at one time or another. Dark circles are usually caused by many factors; very often they tend to be hereditary but are also compounded if too much time is spent in front of the computer screen or if one has irregular sleeping hours. Many people with allergies and irregular sleep cycles also tend to have dark circles. Smoking, drinking a lot of coffee, soda or caffeine beverages will usually make dark circles worse.