All you need is 30 minutes to feel the burn.

You’ve been there before. You pick up a bag of groceries and figure you can walk them from your car to your house pretty easily. Thing is, when you put the groceries down in your house, you’re tired.

Workout methods with numbers in the name have been having a moment lately. The 12-3-30 treadmill workout, the 3-2-8 workout, the 3-2-1 fitness method ... and the list goes on. There’s a good reason ...