The appeal of badminton lies with the ease with which a beginner can learn to play and the simplicity of its rules. That said, it is considered that it is one of the fastest and most physically demanding sports, requiring speed, endurance and tactical awareness
If you haven’t played before, or if you are still new to the sport, this link explains the rules of badminton
http://www.talkbadminton.co.uk/guides/badminton_rules.html
And if you want to see just how demanding the game can be, have a look at this amazing clip: