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What is the recommended minimum number of minutes per week for vigorous-intensity exercise according to the guidelines?

  1. 45 minutes

  2. 60 minutes

  3. 75 minutes

  4. 90 minutes

The correct answer is: 75 minutes

The recommended minimum number of minutes per week for vigorous-intensity exercise is 75 minutes, as outlined by health guidelines from organizations such as the Centers for Disease Control and Prevention (CDC) and the American Heart Association (AHA). Vigorous-intensity exercise includes activities that significantly increase heart rate and breathing, such as running or intense aerobic activities, and it is encouraged to promote cardiovascular health, muscle strength, and overall fitness. This recommendation is part of a broader set of guidelines that suggests adults engage in a combination of aerobic and muscle-strengthening activities. Meeting this threshold helps ensure individuals achieve benefits related to weight management, chronic disease prevention, and improved mental health. The choice of 75 minutes reflects the intensity of the exercise; since it is high-intensity, a shorter duration is sufficient to achieve health benefits compared to moderate-intensity exercise, which typically requires a longer duration.