I'm so confussed .. exercize.. sleep ?

Question

Whenever I wake up i feel skinny, and look it to.

And my sides are all trimmed ( waist) and its more harder there.

But whenever i have breakfast ( activia yogurt, with fruits, or granola bar with fruits ) And then goto the gym do 60 minutes of the slider ( cardio) then some ab work, and some light weights, i look more heavyy, and patted after it ..

Why is this ?

And then it dies down later on.

And I even look better, and more trim when i sleep and and skip the gym for the day.

( btw i'm 13. )

Answer 1

Im not  100% sure on this but I would say you experience a "pump" during and immediatly after your workout. It is where yuor muscle are filled with blood and increase in size. That might be why you lok biger then becasue it dies down after a while too