What duration of moderate exercise per week is recommended for reducing heart disease risk according to previous studies?

The recommended duration of moderate exercise per week for reducing heart disease risk is indeed 150 minutes. This guideline is widely supported by health organizations, including the American Heart Association, which emphasizes that engaging in moderate-intensity aerobic activity for at least 150 minutes each week can significantly decrease the risk of cardiovascular diseases and improve overall heart health.

Moderate exercise can include activities such as brisk walking, cycling, or swimming, where the individual is working hard enough to raise their heart rate but can still hold a conversation. Regular participation in this amount of physical activity is associated with a host of health benefits, including improved circulation, better weight management, and reduced levels of stress. These factors all contribute to a lowered risk of developing heart disease.

While other durations provided in the options may also offer some level of benefits, they do not align with the established guidelines that specify 150 minutes as the minimum threshold for optimal health outcomes related to heart disease.