More than 78.6 million American adults are obese, which means they have a body mass index (BMI) above 30. Obesity is one of the leading causes of high blood pressure, a condition that affects more than 70 million American adults. Both conditions, if left untreated, may increase the chance of heart attack or stroke. And if you’re obese with high blood pressure, your risk is even higher. Weight loss is a great way to lower your blood pressure and your risk of heart disease. If you have mild-to-moderate high blood pressure, exercise can help lower it by 5 to 7 points, and you might see results as early as 3 to 4 weeks after increasing your activity. The key is to incorporate both aerobic activity and strength training, and choose activities you enjoy so you’ll be more likely to stick with them over the long haul. Work with your doctor to find an exercise plan that’s safe for you.