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.
Maximize your fitness output. To obtain maximum benefits, increase the length of time that you work out. Gradually try to challenge yourself to extend the period of your workout sessions. For example, if you began your fitness routine walking for 20 minutes a day, after three or four weeks try 25 minutes. Once that becomes too easy try 30 minutes. This means to work harder! To benefit from this principle you must understand your current fitness level.