Lithium and longevity?

Seems like a long shot since we still don't know how lithium works in the body, but according to Science Daily:

Nematode worms treated with lithium show a 46 percent increase in lifespan, raising the tantalizing question of whether humans taking the mood affecting drug are also taking an anti-aging medication.

Lithium is a medication that has been used to treat bipolar disorder for over 50 years. We still don't really know how it works, despite numerous studies and hypotheses.

The study above, by Buck Institute's Gordon J. Lithgow, PhD hypothesize that the process of normal aging in humans is intrinsically linked to the onset of neurodegenerative disease. They are studying hundreds of compounds for their anti-aging properties, and in the case of lithium, exploring the neuroprotective effects of lithium.

I hope they find their Fountain of Youth, but more importantly, there better be ethicists around who can wisely implement the use of it.