Seven Nation Army. Seven Nation Army (also stylized as 7 Nation Army) is a song by American rock duo The White Stripes. It was released as the lead single from their fourth studio album, Elephant, on March 7, 2003, and reached number one on the Modern Rock Tracksâmaintaining that position for three weeks.
A Dr. Kelly Traver , Internal Medicine, answered. To increase aerobic (cardiorespiratory) fitness, do higher-intensity workouts that get you up to 60 to 80 percent of your maximum heart rate for at least 20 to 30 minutes three times a week. This should be in addition to your base activity of 30 minutes a day.
1 If you're a beginner, start with 3 to 4 days of the cardio exercise of your choice, working at a level you can handle. 2  Add time each week to work your way up to 30 to 45 minutes of continuous exercise.  As you get stronger, try interval training once a week to help boost endurance and burn more calories.