Three well-known tech bloggers have had heart attacks since December, and a story in the New York Times suggests that the high stress of blogging may be a cause. Many obsessive bloggers complain of weight fluctuation, insomnia and exhaustion. "There is no official diagnosis of death by blogging, and the premature demise of two people obviously does not qualify as an epidemic," said the newspaper. "But friends and family of the deceased ... say those deaths have them thinking about the dangers of their work style."

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