Go go Fit !!

Fitness is all we see,
But its the way we glee,
It is shown in six packs,
But to be felt in bubbly whacks.

It seems so physical,
But its all mental,
Its easy to inflate,
But hell tough to deflate.

But to feel great inside,
One has to do a lot outside,
A habit is to be installed,
Many bad ones to be fowled.