Association of blood pressure lowering with incident dementia or cognitive impairment: A systematic review and meta-analysis

But this one from June 2019 came to the opposite conclusion:

Blood pressure and risk of dementia and its subtypes: A historical cohort study with long-term follow up in 2.6 million people June 2019 

In the short-term, elevated BP is linked to a reduced risk of dementia, possibly due to reverse causation.

And this one:

The One Benefit Of High Blood Pressure? It May Prevent Dementia August 2014

 

Ask your doctor for clarification. Don't do anything stupid like starting to drink Red Bulls.

The latest here:

Association of blood pressure lowering with incident dementia or cognitive impairment: A systematic review and meta-analysis

Hughes D, Judge C, Murphy R, et al.

JAMA

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May 20, 2020

Researchers conducted this systematic review and meta-analysis to explore if there was a connection between blood pressure lowering and dementia or cognitive impairment. They included 12 trials with 92,135 candidates [mean (SD) age was 69 (5.4) years] for the primary outcome measure. A significant link was seen between blood pressure reduction with antihypertensive agents and lower risk of dementia or cognitive impairment vs control, as seen in 7.0% vs 7.5% of patients over a mean trial follow-up of 4.1 years. Findings suggested that there may be a lower risk of dementia or cognitive impairment associated with lower blood pressure.

Read the full article on JAMA.