Hypertension can result in excess pressure on the brain, which can cause blood to leak from the blood vessels in the organ, said Medical News Today.
The site continued: “This causes edema, or swelling, which is problematic because the brain sits within the skull and has no space to expand.
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“The swelling places further pressure on the brain and causes symptoms that include a headache, dizziness, nausea, confusion, weakness, seizures, and blurred vision.
“If a person receives treatment to lower their blood pressure, their symptoms will usually improve within an hour.”
Source: Daily Express