Photo of adult getting blood pressure checkedWalgreens, the nation’s largest drugstore chain, is offering free blood pressure testing in support of American Heart Month throughout February.

According to the American Heart Association, 76.4 million U.S. adults have been diagnosed with high blood pressure, often known as the “silent killer” because it usually presents no symptoms. High blood pressure can damage your arteries, heart and other organs and increase your risk for heart disease and stroke. It can be fatal if it’s not treated.

“Regular health testing is one of the best ways for people to manage their health, and when it comes to blood pressure, it’s important for people to know their numbers because detection of high blood pressure can be critical,” said Harry Leider, M.D., Walgreens chief medical officer.

Walgreens pharmacists, nurse practitioners and physician assistants are administering the tests. Individuals are advised to share their results with their doctor, who may prescribe medication in addition to lifestyle modifications, if blood pressure test results are 140/90 or higher.