Effect of overtime work on 24-hour ambulatory blood pressure
Blood pressure measurements over a 24h period were compared among several groups of male white-collar workers: overtime groups (average 60 hours or more overtime per month) and control groups (average 30 hours or less overtime per month). For those with normal blood pressure and those with mild hypertension, the 24h average blood pressure of the overtime groups was higher than that of the control groups. For a group who periodically did overtime work, the 24h average blood pressure and the heart rate during the busy period increased. The burden on the cardiovascular system of white-collar workers increases with overtime work.
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