> **Why am I not accelerated by the reaction force applied by earth on me?**

Because the net force on your centre of mass is zero.

The upward force on your feet is of the same magnitude as the downward force of gravity.

Your major leg bones and spine are in compression because of the opposing forces.

> **I know that these forces will not cancel each other out since they are applied on different bodies and not a single**

You are mistaken. The planet's gravity acts on your body. The reaction force from the ground also acts on your body.