According to Astrology-Online.com, "when some cause or work of this nature inspires them, they are capable of such devotion to it that they may drive themselves to the point of exhaustion and even risk injuring their health."
Although Oprah has been relatively healthy for most of her life, her weight has fluctuated throughout the years. Because of this, her zodiac may explain her necessity to put her career over her weight loss.
Perhaps Oprah should consult a psychic? Psychics can see into the woman's future and tell her how to be the healthiest person she can be in the wake of her retirement.