To Spin

Children love to spin and spin 
With no need to be cautious.
Just watching them's enough for me
To feel a little nauseous.

Our inner workings, in our youth,
Allow the blood to flow
But as we age, attempts to twirl 
Will give us vertigo.

Perhaps that is the reason why
My grandson, being bold,
Announced that spinning's not for me -
Because I'm just too old!