# What could cause a disproportionate reduction in diastolic pressure?

**URL:** <https://boards.straightdope.com/t/what-could-cause-a-disproportionate-reduction-in-diastolic-pressure/829199>\
**Category:** Factual Questions\
**Created:** [February 8, 2019, 10:03pm UTC](https://boards.straightdope.com/t/what-could-cause-a-disproportionate-reduction-in-diastolic-pressure/829199 "2019-02-08T22:03:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![MichaelEmouse](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/michaelemouse/32/101_2.png) [@MichaelEmouse](https://boards.straightdope.com/u/MichaelEmouse)\
**Post date:** [February 8, 2019, 10:03pm UTC](https://boards.straightdope.com/t/what-could-cause-a-disproportionate-reduction-in-diastolic-pressure/829199/1 "2019-02-08T22:03:11Z")

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I’m not asking for advice, just possible causes and mechanisms. I’m not looking to diagnose a health problem because I don’t think there is one; I’m trying to understand the intermediate cause-effects between exercise and blood pressure.

Let’s say you start with 120/80 80bpm blood stats. Then you exercise for a few months and it goes down to 110/65 65bpm; Diastolic pressure decreased proportionately more than systolic pressure. How come?