blood pressure explainer elizabeth cohen mss orig_00010117.jpg
Why is high blood pressure a 'silent killer'?
01:29 - Source: CNN

Sign up for CNN’s Stress, But Less newsletter. Our six-part mindfulness guide will inform and inspire you to reduce stress while learning how to harness it.

CNN  — 

High blood pressure is a known risk factor for a bout of Covid-19 severe enough to raise the specter of hospitalization and death. In fact, research has shown having high blood pressure doubles the risk of having a severe case of Covid, even if you are fully vaccinated and boosted.