High blood pressure, also known as hypertension, is a condition that affects millions of people worldwide. While there are many medications available to treat hypertension, some people prefer to lower their blood pressure naturally with herbs. Let's take a look at five herbs that have been shown to be effective in lowering blood pressure. 1. Hawthorn Hawthorn is a popular herb for treating cardiovascular problems. The active compounds in hawthorn help to dilate the blood vessels and increase blood flow. Hawthorn is also a rich source of antioxidants, which can help protect the heart from damage. A study published in 2012 found that hawthorn extract was effective in reducing both systolic and diastolic blood pressure in people with hypertension. 2. Garlic Garlic has long been used as a natural treatment for high blood pressure. It contains a compound called allicin, which has been shown to help lower blood pressure by relaxing the blood vessels and improving circulation. A meta-analysis of 11 studies found that garlic supplements were associated with a small but significant reduction in systolic blood pressure. 3. Hibiscus Hibiscus is a flower that has been traditionally used to treat cardiovascular problems such as hypertension. The active compounds in hibiscus flower petals help to widen the blood vessels and improve circulation. A study published in 2009 found that hibiscus tea was effective in lowering systolic and diastolic blood pressure in people with mild hypertension. 4. Cinnamon Cinnamon is a spice that can be used to add flavor to food or brewed into tea. It contains compounds that have been shown to lower LDL ("bad") cholesterol, total cholesterol, and triglycerides—all of which can contribute to hypertension. A study published in 2010 found that cinnamon supplementation was associated with a small reduction in systolic blood pressure. 5. Stress-reducing activities While not technically an herb, stress-reducing activities such as yoga and meditation can help lower blood pressure by reducing the stress hormone cortisol levels . A study published in 2014 found that yoga was associated with a significant reduction in both systolic and diastolic blood pressure. If you're looking for natural ways to lower your blood pressure, consider trying one of these five herbs. While more research is needed, there is some evidence to suggest that they may be effective treatments for hypertension. As always, be sure to speak with your doctor before starting any new supplement regimen.