A longterm study showed that working more than 11 hours a day increased the risk for heart disease by 67%. It was not determined if it was the long hours themselves or the unhealthy habits associated such as diet, exercise, sleep and stress that was the underlying mechanism. What we should be striving for is balance in life in our work, exercise, diet, stress, enjoyment, and sleep. Our work should be our avocation rather than just a means to earn income.
