What’s the deal with dairy and heart health?

Full-fat dairy products such as yogurt and cheese can be part of a heart-healthy diet. Compared with nonfat or low-fat products, full-fat dairy products tend to be tastier and more filling. But because they contain more calories and saturated fat, it’s best to limit full-fat dairy products to one serving a day and combine them with healthy foods, such as fruit, whole grains, and salads. Cheese is often eaten with less-healthy foods such as refined grains and meat, including pizza, burgers, mac and cheese, and Mexican food.

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Tips for choosing walking shoes

Experts suggest people replace their walking shoes every 300 to 500 miles. For the best selection and advice, people should consider shopping at a specialty running store that also sells walking shoes. Other tips for choosing comfortable, supportive shoes include looking for low-heeled shoes that bend easily at the ball of the foot and have wiggle room at the toes.

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What causes a stiff, narrowed aortic valve?

The most common cause of a stiff, narrowed aortic valve (aortic stenosis) is a buildup of scar tissue and calcium on the valve. Factors that contribute to narrowing of this valve include age, an inborn valve defect, and various diseases such as kidney disease. Aortic stenosis can cause shortness of breath, fatigue, and lightheadedness, especially during physical activity.

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