Twenty four hour monitors split blood pressure into day and night averages. The percentage drop overnight classifies you into one of four dipping patterns.
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- Risk spectrum with your position marked
- Reference ranges from the original publication
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Scientific references
Why night pressure matters
Healthy physiology drops pressure ten to twenty percent during sleep, giving vessels a maintenance window. When the dip disappears, nighttime pressure quietly becomes the strongest predictor of organ damage and events.
Understanding your result
- A negative number means pressure rises at night, the reverse pattern
- 0 to 9 percent is non dipping
- 10 to 19 percent is the normal dipper pattern
- 20 percent or more is extreme dipping, linked to morning surges
What disrupts dipping
Sleep apnea, kidney disease, salt sensitivity, shift work and poorly timed medication all blunt the night fall.
Action
Non dippers often benefit from moving at least one blood pressure medication to bedtime, a strategy shown to cut events in the Hygia trial.