7 minutes of simple calisthenics done at a high pace with little rest and a specific order. The goal of this workout is not to make you a pro athlete or give you six-pack abs, but to improve health markers with as little exercise as possible.

You had me at "as little exercise as possible".

And you can do the 7 minute workout every day:

http://pandawhale.com/post/35818/morning-rituals-for-productivity

Here's more discussion about it:

http://pandawhale.com/post/19976/7-minute-workoutcue-something-about-mary

Here's a gif of it:

As a video:

http://www.businessinsider.com/science-workout-health-fitness-2016-3