Everyone that thirsts for God come freely to the waters.

Originally posted by DBT9: ↑

There have been any number of studies. It's basically a dead end.

Abstract
Religious traditions across the world display beliefs in healing through prayer. The healing powers of prayer have been examined in triple-blind, randomized controlled trials. We illustrate randomized controlled trials on prayer and healing, with one study in each of different categories of outcome. We provide a critical analysis of the scientific and philosophical dimensions of such research. Prayer has been reported to improve outcomes in human as well as nonhuman species, to have no effect on outcomes, to worsen outcomes and to have retrospective healing effects. For a multitude of reasons, research on the healing effects of prayer is riddled with assumptions, challenges and contradictions that make the subject a scientific and religious minefield. We believe that the research has led nowhere, and that future research, if any, will forever be constrained by the scientific limitations that we outline.

Prayer and healing: A medical and scientific perspective on randomized controlled trials - PMC (nih.gov)

''Prayers offered by strangers had no effect on the recovery of people who were undergoing heart surgery, a large and long-awaited study has found.

And patients who knew they were being prayed for had a higher rate of post-operative complications like abnormal heart rhythms, perhaps because of the expectations the prayers created, the researchers suggested.

Because it is the most scientifically rigorous investigation of whether prayer can heal illness, the study, begun almost a decade ago and involving more than 1,800 patients, has for years been the subject of speculation.

In another of the study's findings, a significantly higher number of the patients who knew that they were being prayed for -- 59 percent -- suffered complications, compared with 51 percent of those who were uncertain. The authors left open the possibility that this was a chance finding. But they said that being aware of the strangers' prayers also may have caused some of the patients a kind of performance anxiety.

Long-Awaited Medical Study Questions the Power of Prayer - The New York Times (nytimes.com)

And keep the placebo effect in mind, as well as confirmation bias, where those who do recover are attributed to God answering their prayers, while all the failures are put down to 'it was meant to be' or 'Gods will be done...''

Expand

The difference between these two kinds of testing God is faith. “Now faith is confidence in what we hope for and the assurance about what we do not see” (Hebrews 11:1).

The Israelites at Massah tested God because they lacked faith in Him, similar to the scientists involved in these studies. The Israelites in Malachi’s day were invited to test God because they had faith in Him. Faith, by definition, takes risk. When true faith is present, obedience follows. It is that faith-inspired action of obedience that God loves.

"By faith Abraham obeyed when he was called to go out to a place that he was to receive as an inheritance. And he went out, not knowing where he was going. By faith he went to live in the land of promise, as in a foreign land, living in tents with Isaac and Jacob, heirs with him of the same promise. For he was looking forward to the city that has foundations, whose designer and builder is God." (Hebrews 11:8-10 ESV)

By contrast, when we view God through our doubt and demand something of Him as a way of determining whether or not He can be trusted, we’re in danger of testing God (see Matthew 16:1-4). But to an evil and adulterous generation no sign will be given, except for the sign of the prophet Jonah. "For just as Jonah was three days and three nights in the belly of the great fish, so will the Son of Man be three days and three nights in the heart of the earth." (Matthew 12:40 ESV) We know this sign today as the death and subsequent resurrection from the dead of Christ Jesus after three days and three nights.

I'll leave you with this:
Then the devil took him to the holy city and set him on the pinnacle of the temple and said to him, "If you are the Son of God, throw yourself down, for it is written, "'He will command his angels concerning you,' and "'On their hands they will bear you up, lest you strike your foot against a stone.'" Jesus said to him, "Again it is written, 'You shall not put the Lord your God to the test.'" (Matthew 4:5-7 ESV)

Repent: for the kingdom of heaven is at hand.