Guarana contains caffeine and is an herb commonly used in energy drinks. Many energy drinks contain high amounts of caffeine, and adding guarana increases caffeine amounts. Excessive caffeine can ...
Certain natural ways to lower blood pressure, such as eating garlic, basil, and other herbs and spices, may also work. High blood pressure, also called hypertension, can often be managed with ...
Bitter orange contains synephrine, which one study found can increase blood pressure and, therefore, could help people with symptoms of low blood pressure. Herbal supplements can interact with ...
If blood pressure remains elevated over time, it can raise the risk of heart attack, chronic kidney disease, stroke, and other serious health conditions. Research has found that caffeine ...