Impact of mantra recital on health

[Surya P. Mittal]

On behalf of my friend (not an Indologist) on whose request
I initiated this query, I thank all those who spared their
valuable time to respond.

Surya

> Is there any research (completed/ongoing) on the impact of
> mantra recital on health -- more specifically the mental
> health, i.e. the psychological/psychiatric problems ?
> Any references (web-sites/print/contact persons) will be
> helpful.
>
> Thanks in advance,
> Surya P. Mittal