Your circulatory system is very much like the hot tub’s. Your blood is like the water. Your heart is like the pump, and your blood vessels are like the pipes. Your heart pumps your blood through the circulatory system in order to feed oxygen and nutrients to cells throughout your body, and to remove waste products. By circulating through the system, your blood is filtered and re-utilized, again and again.

Cat’s claw is an herbal medicine used in traditional Chinese practice to treat hypertension as well as neurological health problems. Studies of cat’s claw as a treatment for hypertension in rodents indicate that it may be helpful in reducing blood pressure by acting on calcium channels in your cells. You can get cat’s claw in supplement form from many health food stores.
Although certain supplements may be helpful, it's important to understand they should never be used as a substitute for basic lifestyle choices that treat the real cause of the problem. Using only supplements without modifying your lifestyle is an allopathic approach not very different from using drugs. In most instances, it is not likely to be effective. Once you have made some beneficial changes to your lifestyle, you can then consider some of the following supplements as a way to further enhance your health:
Dairy or soy—it’s your choice. Replacing some of the refined carbohydrates in your diet with foods high in soy or milk protein (like tofu or low-fat dairy) can bring down systolic blood pressure if you have hypertension or prehypertension, findings suggest. "Some patients get inflammation from refined carbohydrates, which will increase blood pressure," says Matthew J. Budoff, MD, FACC, Professor of Medicine at the David Geffen School of Medicine and Director of Cardiac CT at the Division of Cardiology at the Harbor-UCLA Medical Center.

Flavanols an anti-inflammatory and heart-protective antioxidant found in raw cacao may protect against cardiovascular disease, reduce the risk of stroke, and help improve blood circulation. Thus lowering your blood pressure. Cacao contains over 700 compounds and the complex antioxidants found in it known as polyphenols help reduce ‘bad cholesterol’ and prevent hardening of the arteries.

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Drugs that can cause hypertension include acetaminophen, nonsteroidal anti-inflammatories (NSAIDs), antidepressants, corticosteroids, birth control pills and other hormones, migraine medications, nasal decongestants, and over-the-counter cough and cold medicines. Don’t stop taking a medicine without talking with your doctor first; you may be able to take a replacement or adjust your dosage. 
If you’re feeling overwhelmed about how to make changes to your diet or if you’re trying to lose weight, you may want to consider working with a registered dietitian-nutritionist (RDN). Some people work with an RDN if they have a health condition like type 2 diabetes. In fact, high blood pressure is a risk factor for type 2 diabetes. This is partly because they share similar modifiable risk factors, like being overweight or obese, following an unhealthy diet, and having a lack of physical activity.
All medications come with a risk of side effects, so why take them if you don’t have to? According to the U.S. Centers for Disease Control and Prevention, about seven out of 10 U.S. adults with high blood pressure use medications to treat their condition. But what many people don’t realize is that you can help control your blood pressure naturally by changing a few daily habits.
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