The efficacy of prayer: Scientific vs religious evidence.

No scientific study has yet satisfactorily proved the efficacy of prayer. The question one might pose is: Does the efficacy of prayer have to be scientifically proved? For what purpose? Will the majority of mankind change its praying habits on the basis of the results (positive or negative) of such a study?The Bible and the Talmud are rich sources of religious and scientific material. Prayer in Judaism is thought to be efficacious if offered by the proper person at the proper time with the proper intent under the proper circumstances.