Tens of millions of Americans use angiotensin-converting-enzyme (ACE) inhibitors to lower blood pressure. The drugs have many common side effects, including perpetual coughing, headache, and dizziness.

Alternatives: The right diet can go a long way in improving blood pressure – research shows the DASH diet (high in fruits, grains, veggies, and low-fat dairy) can cut blood pressure as much as some meds; regular cardio exercise is also effective. Studies show that pomegranate juice and dark chocolate drop blood pressure too.