But he just hasn't had the physical energy to follow through.

Some of us have more physical energy as the day goes on.

And then they put their money on physical energies, three times out of five.

One used little physical energy in space, and it was easy to forget about food.

The latest act of Sending had left her with almost no physical energy.

He sat for a few minutes after she'd left, unable to work up the mental or physical energy to do anything else.

This light was the first amount of physical energy ever in the universe.

Operators of such systems use their own physical energy as the power source.

I think that took not just physical energy, but mental, as well.

Age had nothing to do with it, nor physical energy.