Chinese New Year

My Chinese horoscope: "The year of 2006 is the same animal as your birth year. This year contains sweet and bitter mixed together. Lots of unseen changes are in front of middle-aged Dogs. People born in 1970 will have good opportunities in sales, writing and things related to the entertainment industry. Your personality and impact on your surroundings will be in top form. You should be able to promote your ideas and plans successfully." Who are they calling middle aged?