Nutrients........................
35% let me know if this helps :)
If the question is:
What controls the function of organs, the answer would be
The brain.
The brain controls the entire human body and is responsible for sending signals to other organs in the nervous system.
I believe that you should try the Spartan Ab Workout, this you can find almost any here , it helps you get a 6 pack , this i use to use it , but i switched to an eight (8) pack abs , there are a series of workouts to use with it , but you should find the one that suites you.
i hope this helps a lot , i have done it before
After eating, when waking up, before going to sleep.
When doing flexibility exercises it helps boost your metabolism and digest food, it also helps stretch your muscles after sleeping for many hours.
I hope this helped you.