life force
vital force
vitality *
elan vital

I feel a little bit of my life force being spent each time.

I believe that the blood is the life force of all.

But this performance was hot with its own life force.

It was a life force in the face of death.

"I guess he was the only one who had that kind of life force."

There is, he says, something within each one of us that lives on beyond our own life force.

I tried to get his life force, and he got mine instead.

The soul is considered to be the life force in a body.

From the level of the cell on, life forces are involved.

She had replaced the lost life force with her own.