There isn't really any such thing as regular yoga. I do know that in the US, many people associate yoga with hatha yoga, which usually means that the focus is on the building blocks of poses and on stretching-type poses.
Inertia is resistance to change. You hate looking at people's feet and yet you stay in your job as a shoe salesman year after year.
Definition of inertia. Isaac Newton is the one who formulated a great definition of inertia. Also known as Newton's first law or law of inertia, Newton restated Galileo's idea. Below is what Newton said in simple terms: If an object is already moving, it will keep moving in a straight line at constant speed unless a force stops it.