Why do my blood pressure readings vary so much during the day?


An individual's blood pressure varies greatly from day to day and season to season. Normally, blood pressure rises during work or play and falls to its lowest levels during sleep. The best way to get consistent readings is to monitor your blood pressure at least once a day, at the same time so that you can minimize the effect that external factors have on the reading.

Also please be sure to consult your physician immediately if you have any doubt about your readings.