NEW YORK ( TheStreet) - Steve Jobs is ill. It's a sickeningly familiar news alert. The Apple ( AAPL) chief announced Monday that he is taking another medical leave, this time with no specified return date. Say hurry back to health Steve Jobs, and say good bye to Apple's lofty stock price. Apple is expected to announce after the bell today that blockbuster holiday sales helped the company shatter another quarter of record sales and profits, blowing Wall Street's financial targets completely out of the water. All of this had been priced in to the stock, with Apple shares reaching new all-time highs nearly every day this past month. At least until today. Apple bulls would argue that the company was just hitting its stride and opening up its lead against a field of inferior tech players. But unfortunately, even the best runners trip from time to time. Steve Jobs' health is among a few obstacles that could stumble Apple on its ridiculously successful path.