energized

Electrically charged; live.

Because of the high level of hazard, work on energized equipment shall be strenuously avoided.

No work should be performed near energized conductors until danger of contact with those conductors has been effectively guarded against.

Full of energy, vitality, or enthusiasm.

He always cambe back very energized with this contact with ordinary working people who were progressive and on a revolutionary path.

But mostly, I'd argue, it's because we will be more capable for longer, with more energized, active minds and bodies.